[developers] lkb/ace difference on generation

[Emily M. Bender]

Hi,

I'm encouraging the current crop of 567 students to try
out ace for generation, and we've turned up a case where
the LKB is happy to generate and ace complains that
the input MRS is ill-formed.  The grammar (for Chukchi)
can be found here:

http://courses.washington.edu/ling567/ckt.tgz

And at least one sentence with this behavior is the following:

mʔ-piri-ɣʔe-n
1sgA.INT-capture-TH-3sgO
"I would have captured it/him/her."

Both the LKB and ace are happy to parse this, with ace giving
the output below, but when I try:

echo "mʔ-piri-ɣʔe-n" | ace -g ckt.dat | ace -g ckt.dat -e

I get:

WARNING: illformed input MRS
NOTE: 0 passive, 0 active edges in final generation chart; built 921998632
passives total. [0 results]
NOTE: 1 readings, added 41 / 34 edges to chart (34 fully instantiated, 2
actives used, 2 passives used)    RAM: 535k
NOTE: parsed 1 / 1 sentences, avg 535k, time 0.01259s
NOTE: generated 0 / 1 sentences, avg 3k, time 0.00032s
NOTE: transfer did 0 successful unifies and 0 failed ones

Any suggestions on how to go about figuring out what
ace doesn't like about the MRS here?  (I tried another grammar
from the same generation and can generate with ace, so I'm
guessing it's not a core matrix property [this time].)

Thanks,
Emily

ace parsing output:

ubuntu at UbuntuLKB:~/567/ckt$ echo "mʔ-piri-ɣʔe-n" | ace -g ckt.dat
SENT: mʔ-piri-ɣʔe-n
[ LTOP: h0 INDEX: event2 [ event SORT: semsort E.TENSE: nonfuture E.ASPECT:
non-progressive E.MOOD: conditional SF: prop-or-ques ] RELS: < [
"_take_v_rel"<-1:-1> LBL: handle1 ARG0: event2 ARG1: ref-ind3 [ ref-ind
SORT: semsort COG-ST: in-foc SPECI: bool PNG.PER: 1st PNG.NUM: singular
PNG.GEND: gender ] ARG2: ref-ind4 [ ref-ind SORT: semsort COG-ST: cog-st
SPECI: bool PNG.PER: 3rd PNG.NUM: singular PNG.GEND: gender ] ] > HCONS: <
h0 qeq handle1 > ICONS: < event2 non-focus ref-ind4 event2 non-focus
ref-ind3 > ] ;  (189 decl-head-opt-subj 0.000000 0 1 (188
basic-head-opt-comp 0.000000 0 1 (187 3sg-O-suffix 0.000000 0 1 (186
thematic-suffix4a 0.000000 0 1 (185 not-prog-lex 0.000000 0 1 (184
not-tku-lex 0.000000 0 1 (183 not-ne-lex 0.000000 0 1 (182
1st-sg-conditional-prefix 0.000000 0 1 (181 not-future-lex 0.000000 0 1
(180 not-ine-lex 0.000000 0 1 (2 piri 0.000000 0 1
("mʔ-piri-ɣʔe-n"))))))))))))
NOTE: 1 readings, added 41 / 34 edges to chart (34 fully instantiated, 2
actives used, 2 passives used)    RAM: 535k


NOTE: parsed 1 / 1 sentences, avg 535k, time 0.00543s



-- 
Emily M. Bender
Professor, Department of Linguistics
Check out CLMS on facebook! http://www.facebook.com/uwclma
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