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Example 13 There are many fish expected to be caught. (Chomsky 2001: 25)
Initial Stream: ['fish', 'n_pl_3rd', 'many', 'catch', 'Psv', 'toT', 'expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']

Successful Derivation 1
Successful Derivation 2
Successful Derivation 3
Successful Derivation 4
Successful Derivation 5


Merge 1
Merge: set-Merge
Stream: ['many', 'catch', 'Psv', 'toT', 'expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 2
Merge: pair-Merge
Stream: ['catch', 'Psv', 'toT', 'expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Label stays
the same:



Merge 3
Merge: set-Merge
Stream: ['Psv', 'toT', 'expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 4
Merge: set-Merge
Stream: ['toT', 'expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 5
Merge: set-Merge
Stream: ['expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson'
Unlabeled:


Merge 6
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 7
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 8
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 9
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 10
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 11
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Transfer:
Frontier:

Spell Out: C n there T(Pres,3rd,pl) be -en expect toT be -en catch many n fish
PF Rules: there T(Pres,3rd,pl)+be
there are -en+expect
there are expected to be -en+catch
there are expected to be caught many fish

Successful Derivation 1
Top

Backtrack (check for another possible derivation: Free Merge): Attempt: #2
Continued from Merge 8

Merge 12
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 13
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 14
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 15
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #3
Continued from Merge 7

Merge 16
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 17
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 18
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 19
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 20
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
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Label from
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Label from
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Label from
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Label from
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Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #4
Continued from Merge 17

Merge 21
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 22
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 23
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 24
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #5
Continued from Merge 6

Merge 25
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 26
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 27
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 28
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 29
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 30
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
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Label from
Head:

Label from
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Label from
Head:

Label from
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Label from
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FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #6
Continued from Merge 27

Merge 31
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 32
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 33
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 34
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
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Label via
shared features:

Label from
Head:

Label from
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Label from
Head:

FormCopy:
Label from
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Label via
movement:

Label from
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Label from
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Label from
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Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #7
Continued from Merge 26

Merge 35
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 36
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 37
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 38
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 39
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
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Label from
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Label from
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FormCopy:
Label from
Head:

Label via
movement:

Label from
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Label from
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Label from
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Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #8
Continued from Merge 36

Merge 40
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 41
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 42
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 43
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
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Label from
Head:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #9
Continued from Merge 5

Merge 44
Merge: set-Merge
Stream: ['expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 45
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 46
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 47
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 48
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 49
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 50
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Transfer:
Frontier:

Spell Out: C n there T(Pres,3rd,pl) be -en expect many n fish toT be -en catch
PF Rules: there T(Pres,3rd,pl)+be
there are -en+expect
there are expected many fish to be -en+catch
there are expected many fish to be caught

Successful Derivation 2
Top

Backtrack (check for another possible derivation: Free Merge): Attempt: #10
Continued from Merge 47

Merge 51
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 52
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 53
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 54
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #11
Continued from Merge 46

Merge 55
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 56
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 57
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 58
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 59
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
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Label from
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FormCopy:
Label from
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Label via
movement:

Label from
Head:

Label from
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Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #12
Continued from Merge 56

Merge 60
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 61
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 62
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 63
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
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Label via
shared features:

Label from
Head:

Label from
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FormCopy:
Label from
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Label via
movement:

Label from
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Label from
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FormCopy:
Label from
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Label via
movement:

Label from
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Label from
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Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #13
Continued from Merge 45

Merge 64
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 65
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 66
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 67
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 68
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 69
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
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Label via
shared features:

Label from
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Label from
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Label from
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Label from
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Label from
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FormCopy:
Label from
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Label via
movement:

Label from
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Label from
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Label from
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FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #14
Continued from Merge 66

Merge 70
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 71
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 72
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 73
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
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Label from
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Label via
shared features:

Label from
Head:

Label from
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Label from
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FormCopy:
Label from
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Label via
movement:

Label from
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FormCopy:
Label from
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Label via
movement:

Label from
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Label from
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Label from
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FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #15
Continued from Merge 65

Merge 74
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 75
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 76
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 77
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 78
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
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Label from
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Label from
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FormCopy:
Label from
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Label via
movement:

Label from
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FormCopy:
Label from
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Label via
movement:

Label from
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Label from
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Label from
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FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #16
Continued from Merge 75

Merge 79
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 80
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 81
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 82
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
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Label via
shared features:

Label from
Head:

Label from
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FormCopy:
Label from
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Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
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FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #17
Continued from Merge 4

Merge 83
Merge: set-Merge
Stream: ['toT', 'expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 84
Merge: set-Merge
Stream: ['expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson'
Unlabeled:


Merge 85
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 86
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 87
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 88
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 89
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 90
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
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Label via
shared features:

Label from
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Label from
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Label from
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Label from
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Label from
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Label from
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Label from
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Label from
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FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #18
Continued from Merge 87

Merge 91
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 92
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 93
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 94
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
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Label from
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Label via
shared features:

Label from
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Label from
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Label from
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Label from
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FormCopy:
Label from
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Label via
movement:

Label from
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Label from
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FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #19
Continued from Merge 86

Merge 95
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 96
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 97
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 98
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 99
Merge: set-Merge
Stream: []
Unlabeled:
Label from
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Label from
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Label via
shared features:

Label from
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Label from
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Label from
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FormCopy:
Label from
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Label via
movement:

Label from
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Label from
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FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #20
Continued from Merge 96

Merge 100
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 101
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 102
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 103
Merge: set-Merge
Stream: []
Unlabeled:
Label from
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Label from
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Label from
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Label via
shared features:

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FormCopy:
Label from
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Label from
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FormCopy:
Label from
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Label via
movement:

Label from
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Label from
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FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #21
Continued from Merge 85

Merge 104
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 105
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 106
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 107
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 108
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 109
Merge: set-Merge
Stream: []
Unlabeled:
Label from
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shared features:

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FormCopy:
Label from
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Label via
movement:

Label from
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Label from
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FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #22
Continued from Merge 106

Merge 110
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 111
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 112
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 113
Merge: set-Merge
Stream: []
Unlabeled:
Label from
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shared features:

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FormCopy:
Label from
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movement:

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FormCopy:
Label from
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Label via
movement:

Label from
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FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #23
Continued from Merge 105

Merge 114
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 115
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 116
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 117
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 118
Merge: set-Merge
Stream: []
Unlabeled:
Label from
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Label from
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Label via
shared features:

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Label from
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FormCopy:
Label from
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movement:

Label from
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Label from
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FormCopy:
Label from
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Label via
movement:

Label from
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Label from
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FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #24
Continued from Merge 115

Merge 119
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 120
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 121
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 122
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
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Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #25
Continued from Merge 84

Merge 123
Merge: set-Merge
Stream: ['expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 124
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 125
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 126
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 127
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 128
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 129
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Transfer:
Frontier:

Spell Out: C n there T(Pres,3rd,pl) be -en expect many n fish toT be -en catch
PF Rules: there T(Pres,3rd,pl)+be
there are -en+expect
there are expected many fish to be -en+catch
there are expected many fish to be caught

Successful Derivation 3
Top

Backtrack (check for another possible derivation: Free Merge): Attempt: #26
Continued from Merge 126

Merge 130
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 131
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 132
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 133
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #27
Continued from Merge 125

Merge 134
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 135
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 136
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 137
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 138
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #28
Continued from Merge 135

Merge 139
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 140
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 141
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 142
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #29
Continued from Merge 124

Merge 143
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 144
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 145
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 146
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 147
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 148
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #30
Continued from Merge 145

Merge 149
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 150
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 151
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 152
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #31
Continued from Merge 144

Merge 153
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 154
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 155
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 156
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 157
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #32
Continued from Merge 154

Merge 158
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 159
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 160
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 161
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #33
Continued from Merge 3

Merge 162
Merge: set-Merge
Stream: ['Psv', 'toT', 'expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 163
Merge: set-Merge
Stream: ['toT', 'expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 164
Merge: set-Merge
Stream: ['expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson'
Unlabeled:


Merge 165
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 166
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 167
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 168
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 169
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 170
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #34
Continued from Merge 167

Merge 171
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 172
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 173
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 174
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #35
Continued from Merge 166

Merge 175
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 176
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 177
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 178
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 179
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #36
Continued from Merge 176

Merge 180
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 181
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 182
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 183
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #37
Continued from Merge 165

Merge 184
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 185
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 186
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 187
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 188
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 189
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #38
Continued from Merge 186

Merge 190
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 191
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 192
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 193
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #39
Continued from Merge 185

Merge 194
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 195
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 196
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 197
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 198
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #40
Continued from Merge 195

Merge 199
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 200
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 201
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 202
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #41
Continued from Merge 164

Merge 203
Merge: set-Merge
Stream: ['expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 204
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 205
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 206
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 207
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 208
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 209
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Transfer:
Frontier:

Spell Out: C n there T(Pres,3rd,pl) be -en expect many n fish toT be -en catch
PF Rules: there T(Pres,3rd,pl)+be
there are -en+expect
there are expected many fish to be -en+catch
there are expected many fish to be caught

Successful Derivation 4
Top

Backtrack (check for another possible derivation: Free Merge): Attempt: #42
Continued from Merge 206

Merge 210
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 211
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 212
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 213
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #43
Continued from Merge 205

Merge 214
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 215
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 216
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 217
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 218
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #44
Continued from Merge 215

Merge 219
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 220
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 221
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 222
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #45
Continued from Merge 204

Merge 223
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 224
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 225
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 226
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 227
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 228
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #46
Continued from Merge 225

Merge 229
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 230
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 231
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 232
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #47
Continued from Merge 224

Merge 233
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 234
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 235
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 236
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 237
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #48
Continued from Merge 234

Merge 238
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 239
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 240
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 241
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #49
Continued from Merge 163

Merge 242
Merge: set-Merge
Stream: ['toT', 'expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 243
Merge: set-Merge
Stream: ['expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson'
Unlabeled:


Merge 244
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 245
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 246
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 247
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 248
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 249
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #50
Continued from Merge 246

Merge 250
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 251
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 252
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 253
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #51
Continued from Merge 245

Merge 254
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 255
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 256
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 257
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 258
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #52
Continued from Merge 255

Merge 259
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 260
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 261
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 262
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #53
Continued from Merge 244

Merge 263
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 264
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 265
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 266
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 267
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 268
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #54
Continued from Merge 265

Merge 269
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 270
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 271
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 272
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #55
Continued from Merge 264

Merge 273
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 274
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 275
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 276
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 277
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #56
Continued from Merge 274

Merge 278
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 279
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 280
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 281
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #57
Continued from Merge 243

Merge 282
Merge: set-Merge
Stream: ['expect', 'Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 283
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 284
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 285
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 286
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 287
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 288
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Transfer:
Frontier:

Spell Out: C n there T(Pres,3rd,pl) be -en expect many n fish toT be -en catch
PF Rules: there T(Pres,3rd,pl)+be
there are -en+expect
there are expected many fish to be -en+catch
there are expected many fish to be caught

Successful Derivation 5
Top

Backtrack (check for another possible derivation: Free Merge): Attempt: #58
Continued from Merge 285

Merge 289
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 290
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 291
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 292
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #59
Continued from Merge 284

Merge 293
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 294
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 295
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 296
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 297
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #60
Continued from Merge 294

Merge 298
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 299
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 300
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 301
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #61
Continued from Merge 283

Merge 302
Merge: set-Merge
Stream: ['Psv', 'Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 303
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 304
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 305
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 306
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 307
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #62
Continued from Merge 304

Merge 308
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 309
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 310
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 311
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #63
Continued from Merge 303

Merge 312
Merge: set-Merge
Stream: ['Tpres', ['n_Expl', 'there'], 'C']
Unlabeled:


Merge 313
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Operations: Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 314
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 315
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 316
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #64
Continued from Merge 313

Merge 317
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'C']
Unlabeled:

Substream
Stream: ['there', 'n_Expl']

Merge 318
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 319
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'C']
Unlabeled:


Merge 320
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Label from
Head:

Label via
movement:

Label from
Head:

FormCopy:
Crash (Unlabeled):


# of Merges: 320
# of Backtracks: 63
# of Crashes: 739
# of Successful Derivations: 5

Top