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Example 8 We expect there to arrive a man. (Chomsky 2001:16)
Initial Stream: ['man', 'n_sg_3rd', 'a', 'arrive', 'v', 'toT', ['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']

Successful Derivation 1


Merge 1
Merge: set-Merge
Stream: ['a', 'arrive', 'v', 'toT', ['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 2
Merge: pair-Merge
Stream: ['arrive', 'v', 'toT', ['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Label stays
the same:



Merge 3
Merge: set-Merge
Stream: ['v', 'toT', ['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 4
Merge: set-Merge
Stream: ['toT', ['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 5
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (toT,n)
Checked Features: 'uPerson'
Unlabeled:

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

Merge 6
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 7
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 8
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 9
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared Person:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:


Substream
Stream: ['we', 'n_pl_1st']

Merge 10
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 11
Merge: set-Merge
Stream: [['we', 'n_pl_1st'], 'Tpres', 'C']
Unlabeled:


Merge 12
Merge: set-Merge
Stream: ['C']
Operations: Agree: (Tpres,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:


Merge 13
Merge: set-Merge
Stream: []
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #2
Continued from Merge 12

Merge 14
Merge: set-Merge
Stream: ['C']
FormCopy:
Unlabeled:


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

Label from
Head:

Label via
shared features:

Label from
Head:

Label from
Head:

Label via
movement:

Transfer:
Frontier:

Terminals: C n we T(Pres,1st,pl) v* expect n there toT v arrive a n man
Externalization
Rules:
we T(Pres,1st,pl)+expect
we expect there to arrive a man

Successful Derivation 1
Top

Backtrack (check for another possible derivation: Free Merge): Attempt: #3
Continued from Merge 8

Merge 16
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 17
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #4
Continued from Merge 7

Merge 18
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:

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

Merge 19
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 20
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 21
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):

Backtrack (check for another possible derivation: Free Merge): Attempt: #5
Continued from Merge 20

Merge 22
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 23
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):

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

Merge 24
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:

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

Merge 25
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 26
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 27
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 28
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared Person:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #7
Continued from Merge 27

Merge 29
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 30
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared Person:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #8
Continued from Merge 26

Merge 31
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:

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

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

Main Stream


Merge 33
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 34
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):

Backtrack (check for another possible derivation: Free Merge): Attempt: #9
Continued from Merge 33

Merge 35
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 36
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):

Backtrack (check for another possible derivation: Free Merge): Attempt: #10
Continued from Merge 4

Merge 37
Merge: set-Merge
Stream: ['toT', ['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 38
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (toT,n)
Checked Features: 'uPerson'
Unlabeled:

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

Merge 39
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 40
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 41
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 42
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared Person:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #11
Continued from Merge 41

Merge 43
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 44
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #12
Continued from Merge 40

Merge 45
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:

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

Merge 46
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 47
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 48
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):

Backtrack (check for another possible derivation: Free Merge): Attempt: #13
Continued from Merge 47

Merge 49
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 50
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):

Backtrack (check for another possible derivation: Free Merge): Attempt: #14
Continued from Merge 38

Merge 51
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:

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

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

Main Stream


Merge 53
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 54
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 55
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared Person:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #15
Continued from Merge 54

Merge 56
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 57
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared Person:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #16
Continued from Merge 53

Merge 58
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:

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

Merge 59
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 60
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 61
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):

Backtrack (check for another possible derivation: Free Merge): Attempt: #17
Continued from Merge 60

Merge 62
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 63
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):

Backtrack (check for another possible derivation: Free Merge): Attempt: #18
Continued from Merge 3

Merge 64
Merge: set-Merge
Stream: ['v', 'toT', ['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 65
Merge: set-Merge
Stream: ['toT', ['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 66
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (toT,n)
Checked Features: 'uPerson'
Unlabeled:

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

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

Main Stream


Merge 68
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 69
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 70
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared Person:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #19
Continued from Merge 69

Merge 71
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 72
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #20
Continued from Merge 68

Merge 73
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:

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

Merge 74
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 75
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 76
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):

Backtrack (check for another possible derivation: Free Merge): Attempt: #21
Continued from Merge 75

Merge 77
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 78
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):

Backtrack (check for another possible derivation: Free Merge): Attempt: #22
Continued from Merge 66

Merge 79
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:

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

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

Main Stream


Merge 81
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 82
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 83
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared Person:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #23
Continued from Merge 82

Merge 84
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 85
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared Person:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label via
movement:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #24
Continued from Merge 81

Merge 86
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:

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

Merge 87
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 88
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 89
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):

Backtrack (check for another possible derivation: Free Merge): Attempt: #25
Continued from Merge 88

Merge 90
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 91
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):

Backtrack (check for another possible derivation: Free Merge): Attempt: #26
Continued from Merge 65

Merge 92
Merge: set-Merge
Stream: ['toT', ['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 93
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (toT,n)
Checked Features: 'uPerson'
Unlabeled:

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

Merge 94
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 95
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 96
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 97
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared Person:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #27
Continued from Merge 96

Merge 98
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 99
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #28
Continued from Merge 95

Merge 100
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:

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

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

Main Stream


Merge 102
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 103
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):

Backtrack (check for another possible derivation: Free Merge): Attempt: #29
Continued from Merge 102

Merge 104
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 105
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):

Backtrack (check for another possible derivation: Free Merge): Attempt: #30
Continued from Merge 93

Merge 106
Merge: set-Merge
Stream: [['n_Expl', 'there'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:

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

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

Main Stream


Merge 108
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 109
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 110
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared Person:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #31
Continued from Merge 109

Merge 111
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 112
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Unified Features: uPerson
Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
shared Person:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label via
movement:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #32
Continued from Merge 108

Merge 113
Merge: set-Merge
Stream: [['there', 'n_Expl'], 'expect', 'v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:

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

Merge 114
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 115
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
Unlabeled:


Merge 116
Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):

Backtrack (check for another possible derivation: Free Merge): Attempt: #33
Continued from Merge 115

Merge 117
Merge: set-Merge
Stream: ['v*', ['n_pl_1st', 'we'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 118

Merge: set-Merge
Stream: [['n_pl_1st', 'we'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Label via
movement:

Label from
Head:

Label from
Head:

Operations: Unchecked Features: uPerson
Crash (Unchecked Feature):
# of Backtracks: 32
# of Crashes: 32
# of Successful Derivations: 1

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