Grammar example

Japanese version

Now let us take "I thanked him." as an example. I will illustrate how the ENJU grammar work with this example.

The lexical entry corresponding to the "I" in this sentence would like like the following AVM. For more precise description of the lexical entry, check out the lexical entry of "I" . (You can view it with a browser that supports XHTML and XSLT)

PHON: < 1"I" >
SYNSEM
LOCAL
CAT
HEAD hpsg_noun
CASE: hpsg_nom
MOD: < >
POSTHEAD: hpsg_binary
VAL SUBJ: < >
COMPS: < >
SPR: < >
SPEC: < >
CONJ: < >
CONT
HOOK
PRED
LEX_WORD word
INPUT: 1"I"
SURFACE: 2"i"
BASE: 2
INPUT_POS: 3"PRP"
POS: 3
BASE_POS: 3
POSITION: 40
RELS: < >
NONLOCAL
INHER REL: < >
SLASH: < >

The lexical entry corresponding to the "thanked" in this sentence would look like the following AVM. For more precise description, check out the lexical entry of "thanked"

PHON: < 5"thanked" >
SYNSEM
LOCAL
CAT
HEAD 17 hpsg_verb
VFORM: verb_fin
TENSE: tense_past
MOD: < >
POSTHEAD: hpsg_binary
VAL SUBJ: <
LOCAL
CAT
HEAD hpsg_noun
CASE: hpsg_nom
MOD: < >
POSTHEAD: hpsg_binary
VAL SUBJ: < >
COMPS: < >
SPR: < >
SPEC: < >
CONJ: < >
CONT HOOK: 6
>
COMPS: <
LOCAL
CAT
HEAD hpsg_noun
CASE: hpsg_acc
MOD: < >
POSTHEAD: hpsg_binary
VAL SUBJ: < >
COMPS: < >
SPR: < >
SPEC: < >
CONJ: < >
CONT HOOK: 7
>
SPR: < >
SPEC: < >
CONJ: < >
CONT
HOOK 18
PRED
LEX_WORD word
INPUT: 5"thanked"
SURFACE: "thanked"
BASE: "thank"
INPUT_POS: 8"VBD"
POS: 8
BASE_POS: "VB"
POSITION: 91
ARG1: 6
ARG2: 7
RELS: < >
NONLOCAL
INHER REL: < >
SLASH: < >

The lexical entry corresponding to the "him" in this sentence would look like the following AVM.For more precise description, check out the lexical entry of "him"

PHON: < 10"him" >
SYNSEM
LOCAL
CAT
HEAD hpsg_noun
CASE: hpsg_acc
MOD: < >
POSTHEAD: hpsg_binary
VAL SUBJ: < >
COMPS: < >
SPR: < >
SPEC: < >
CONJ: < >
CONT
HOOK
PRED
LEX_WORD word
INPUT: 10"him"
SURFACE: 11"him"
BASE: 11
INPUT_POS: 12"PRP"
POS: 12
BASE_POS: 12
POSITION: 132
RELS: < >
NONLOCAL
INHER REL: < >
SLASH: < >

Next we apply the Head-Complement Schema to the sign of "thanked" and the sign of "him".The Head-Complement Schema can be applied to signs that satisfy the following constraint:

SYNSEM|LOCAL|CAT|VAL SUBJ: A
COMPS: < B | C >
SPR: D
SPEC: E
CONJ: < >
SYNSEM: B
The following constraint is applied to the mother of "thanked" and "him".(?The Valence Principle is hard-coded as part of the following constraint)
SYNSEM|LOCAL|CAT|VAL SUBJ: A
COMPS: C
SPR: D
SPEC: E
CONJ: < >
As a result of applying the above rule, the initial value of SYNSEM\LOCAL\CAT\VAL\COMP feature of the sign of the head ("thanked") is unified with the value of the SYNSEM feature of the sign of the complement ("him"). Furthermore, the SYNSEM\LOCAL\CONT\HOOK\ARG2 feature of the head is assigned the value of the SYNSEM\LOCAL\CONT\HOOK feature of "him". As a result of applying the semantic_binary_principle, the SYNSEM\LOCAL\CONT\HOOK of the head is passed up to the mother.The sign of the mother is simplified as the following AVM. Note that the following AVM also satisfies the head_feature_principle.
PHON: < 5 10 >
SYNSEM
LOCAL
CAT
HEAD 17 hpsg_verb
VFORM: verb_fin
TENSE: tense_past
MOD: < >
POSTHEAD: hpsg_binary
VAL SUBJ: <
LOCAL
CAT
HEAD hpsg_noun
CASE: hpsg_nom
MOD: < >
POSTHEAD: hpsg_binary
VAL SUBJ: < >
COMPS: < >
SPR: < >
SPEC: < >
CONJ: < >
CONT HOOK: 6
>
COMPS: < >
SPR: < >
SPEC: < >
CONJ: < >
CONT
HOOK 18
PRED
LEX_WORD word
INPUT: 5"thanked"
SURFACE: "thanked"
BASE: "thank"
INPUT_POS: 8"VBD"
POS: 8
BASE_POS: "VB"
POSITION: 91
ARG1: 6
ARG2 7
PRED
LEX_WORD word
INPUT: 10"him"
SURFACE: 11"him"
BASE: 11
INPUT_POS: 12"PRP"
POS: 12
BASE_POS: 12
POSITION: 132
RELS: < >
NONLOCAL
INHER REL: < >
SLASH: < >

As a result of applying the Head-Subject Schema to the above sign and the sign of "I", we obtain the sign corresponding to the whole sentence. The initial value SYNSEM\LOCAL\CAT\VAL\SUBJ feature of the sign of the head ("thanked him") is unified with the value of the SYNSEM feature of the sign of subject("I").The SYNSEM\LOCAL\CONT\HOOK\ARG1 feature of the head is assigned the value of the SYNSEM\LOCAL\CONT\HOOK feature of "I". As a result of applying the semantic_binary_principle, the SYNSEM\LOCAL\CONT\HOOK\ARG1 feature of the head is passed up to the mother.(?mistake in Japanese version. "him"->"I")

PHON: < 1 5 10 >
SYNSEM
LOCAL
CAT
HEAD 17 hpsg_verb
VFORM: verb_fin
TENSE: tense_past
MOD: < >
POSTHEAD: hpsg_binary
VAL SUBJ: < >
COMPS: < >
SPR: < >
SPEC: < >
CONJ: < >
CONT
HOOK 18
PRED
LEX_WORD word
INPUT: 5"thanked"
SURFACE: "thanked"
BASE: "thank"
INPUT_POS: 8"VBD"
POS: 8
BASE_POS: "VB"
POSITION: 91
ARG1 6
PRED
LEX_WORD word
INPUT: 1"I"
SURFACE: 2"i"
BASE: 2
INPUT_POS: 3"PRP"
POS: 3
BASE_POS: 3
POSITION: 40
ARG2 7
PRED
LEX_WORD word
INPUT: 10"him"
SURFACE: 11"him"
BASE: 11
INPUT_POS: 12"PRP"
POS: 12
BASE_POS: 12
POSITION: 132
RELS: < >
NONLOCAL
INHER REL: < >
SLASH: < >

We can obtain the following predicate argument structure from the value of the SYNSEM\LOCAL\CONT\HOOK feature of the above sign:

ROOT     ROOT   ROOT  ROOT  -1  ROOT  thanked  thank  VBD  VB     1
thanked  thank  VBD   VB     1  ARG1  I        i      PRP  PRP    0
thanked  thank  VBD   VB     1  ARG2  him      him    PRP  PRP    2


Enju Developers' Manual Enju Home Page Tsujii Laboratory
MIYAO Yusuke (yusuke@is.s.u-tokyo.ac.jp)