[erg] Disconnected MRS

[Alexandre Rademaker]

Hi Dan,

I am reproducing the discussion https://github.com/delph-in/pydelphin/issues/200 here since the same output was obtained with ACE and LKB_FOS. I have also wrote in https://delphinqa.ling.washington.edu/t/disconnected-structure/270 

(please tell me where is the preferable channel to use: delphinqa? This list?)

In the sentence below, see that x3 variable is not the ARG0 of _tie_v_1 as expected. The i9 variable was introduced and the fragment `a man` is disconnected from the rest of the graph. Is that a bug in the parsers or a problem in the grammar ?? Or maybe none of them ??! ;-)


SENT: A man is untying a shoe.
[ LTOP: h0
INDEX: e2 [ e SF: prop TENSE: pres MOOD: indicative PROG: + PERF: - ]
RELS: < [ _a_q<0:1> LBL: h4 ARG0: x3 [ x PERS: 3 NUM: sg IND: + ] RSTR: h5 BODY: h6 ]
 [ _man_n_1<2:5> LBL: h7 ARG0: x3 ]
 [ _tie_v_1<9:16> LBL: h1 ARG0: e8 [ e SF: prop TENSE: pres MOOD: indicative PROG: + PERF: - ] ARG1: i9 ARG2: x10 [ x PERS: 3 NUM: sg IND: + ] ]
 [ _un-_a_rvrs<9:16> LBL: h1 ARG0: e2 ARG1: e8 ]
 [ _a_q<17:18> LBL: h11 ARG0: x10 RSTR: h12 BODY: h13 ]
 [ _shoe_n_1<19:24> LBL: h14 ARG0: x10 ] >
HCONS: < h0 qeq h1 h5 qeq h7 h12 qeq h14 >
ICONS: < > ]


Best,

--
Alexandre Rademaker
http://arademaker.github.io