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Example 13 Paul remembers having gone to Chicago.
Initial Stream: ['Chicago', 'n_3rd_sg', 'P_to', 'go', 'v', ['n_3rd_msc_sg', 'Paul_1'], 'Perf', 'T_ing', 'remember', 'v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']

Successful Derivation 1
Successful Derivation 2


Merge 1
Merge: set-Merge
Stream: ['P_to', 'go', 'v', ['n_3rd_msc_sg', 'Paul_1'], 'Perf', 'T_ing', 'remember', 'v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Unlabeled:


Merge 2
Merge: set-Merge
Stream: ['go', 'v', ['n_3rd_msc_sg', 'Paul_1'], 'Perf', 'T_ing', 'remember', 'v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Operations: Agree: (to,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:



Merge 3
Merge: set-Merge
Stream: ['v', ['n_3rd_msc_sg', 'Paul_1'], 'Perf', 'T_ing', 'remember', 'v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Unlabeled:


Merge 4
Merge: set-Merge
Stream: [['n_3rd_msc_sg', 'Paul_1'], 'Perf', 'T_ing', 'remember', 'v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Unlabeled:

Substream
Stream: ['Paul_1', 'n_3rd_msc_sg']

Merge 5
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 6
Merge: set-Merge
Stream: [['Paul_1', 'n_3rd_msc_sg'], 'Perf', 'T_ing', 'remember', 'v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Unlabeled:


Merge 7
Merge: set-Merge
Stream: ['T_ing', 'remember', 'v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Unlabeled:


Merge 8
Merge: set-Merge
Stream: ['remember', 'v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Operations: Agree: (Ting,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:


Merge 9
Merge: set-Merge
Stream: ['v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Unlabeled:


Merge 10
Merge: set-Merge
Stream: [['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Operations: Agree: (v*,Ting)
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:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #2
Continued from Merge 9

Merge 11
Merge: set-Merge
Stream: ['v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 12
Merge: set-Merge
Stream: [['n_3rd_msc_sg', 'Paul_2'], '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:

Label via
movement:

Crash (Unlabeled):

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

Merge 13
Merge: set-Merge
Stream: ['remember', 'v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 14
Merge: set-Merge
Stream: ['v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Unlabeled:


Merge 15
Merge: set-Merge
Stream: [['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Operations: Agree: (v*,n),(v*,Ting)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

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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Label from
Head:

Label via
movement:


Substream
Stream: ['Paul_2', 'n_3rd_msc_sg']

Merge 16
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 17
Merge: set-Merge
Stream: [['Paul_2', 'n_3rd_msc_sg'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 18
Merge: set-Merge
Stream: ['C']
Operations: Agree: (Tpres,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:


Merge 19
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: #4
Continued from Merge 18

Merge 20
Merge: set-Merge
Stream: ['C']
FormCopy:
Unlabeled:


Merge 21
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:

Spell Out: C n Paul2 T(Pres,3rd,sg) v* remember $n $Paul1 -ing have -en v go to n Chicago
PF Rules: Paul2 T(Pres,3rd,sg)+remember
Paul2 remembers ∅/himself Ting+have
Paul2 remembers ∅/himself having -en+go
Paul remembers ∅/himself having gone to Chicago

Successful Derivation 1
Top

Backtrack (check for another possible derivation: Free Merge): Attempt: #5
Continued from Merge 14

Merge 22
Merge: set-Merge
Stream: ['v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 23
Merge: set-Merge
Stream: [['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
Head:

Label from
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Label from
Head:

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
Head:

Label via
movement:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #6
Continued from Merge 14

Merge 24
Merge: set-Merge
Stream: ['v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Unlabeled:


Merge 25
Merge: set-Merge
Stream: [['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Operations: Agree: (v*,)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
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Label from
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shared features:

Label from
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shared features:

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Label via
movement:

Label via
movement:

Crash (Unlabeled):

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

Merge 26
Merge: set-Merge
Stream: ['remember', 'v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 27
Merge: set-Merge
Stream: ['remember', 'v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Operations: Agree: (Ting,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:


Merge 28
Merge: set-Merge
Stream: ['v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Unlabeled:


Merge 29
Merge: set-Merge
Stream: [['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Operations: Agree: (v*,Ting)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

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 via
movement:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #8
Continued from Merge 28

Merge 30
Merge: set-Merge
Stream: ['v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 31
Merge: set-Merge
Stream: [['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
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Label via
movement:

Label via
movement:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #9
Continued from Merge 27

Merge 32
Merge: set-Merge
Stream: ['remember', 'v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 33
Merge: set-Merge
Stream: ['v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Unlabeled:


Merge 34
Merge: set-Merge
Stream: [['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Operations: Agree: (v*,n),(v*,Ting)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
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Label from
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Label from
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Label via
shared features:

Label from
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movement:

Label via
movement:


Substream
Stream: ['Paul_2', 'n_3rd_msc_sg']

Merge 35
Merge: set-Merge
Stream: []
Unlabeled:

Main Stream


Merge 36
Merge: set-Merge
Stream: [['Paul_2', 'n_3rd_msc_sg'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 37
Merge: set-Merge
Stream: ['C']
Operations: Agree: (Tpres,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:


Merge 38
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: #10
Continued from Merge 37

Merge 39
Merge: set-Merge
Stream: ['C']
FormCopy:
Unlabeled:


Merge 40
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:

Spell Out: C n Paul2 T(Pres,3rd,sg) v* remember $n $Paul1 -ing have -en v go to n Chicago
PF Rules: Paul2 T(Pres,3rd,sg)+remember
Paul2 remembers ∅/himself Ting+have
Paul2 remembers ∅/himself having -en+go
Paul remembers ∅/himself having gone to Chicago

Successful Derivation 2
Top

Backtrack (check for another possible derivation: Free Merge): Attempt: #11
Continued from Merge 33

Merge 41
Merge: set-Merge
Stream: ['v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
FormCopy:
Unlabeled:


Merge 42
Merge: set-Merge
Stream: [['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Operations: Agree: (v*,n)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
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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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movement:

Label via
movement:

Crash (Unlabeled):

Backtrack (check for another possible derivation: Free Merge): Attempt: #12
Continued from Merge 33

Merge 43
Merge: set-Merge
Stream: ['v*', ['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Unlabeled:


Merge 44
Merge: set-Merge
Stream: [['n_3rd_msc_sg', 'Paul_2'], 'Tpres', 'C']
Operations: Agree: (v*,)
Checked Features: 'uPerson' 'uNumber' 'uGender'
Unlabeled:
Label from
Head:

Label from
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Label from
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Label via
shared features:

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shared features:

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movement:

Label via
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Crash (Unlabeled):

# of Backtracks: 11
# of Crashes: 10
# of Successful Derivations: 2

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