# Invalid MRS produced by the Spanish grammar **URL:** \ **Category:** SRG\ **Created:** [November 10, 2023, 10:03am UTC](https://delphinqa.ling.washington.edu/t/invalid-mrs-produced-by-the-spanish-grammar/987 "2023-11-10T10:03:55Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![olzama](https://delphinqa.ling.washington.edu/user_avatar/delphinqa.ling.washington.edu/olzama/32/6_2.png) [@olzama](https://delphinqa.ling.washington.edu/u/olzama)\ **Post date:** [November 10, 2023, 10:03am UTC](https://delphinqa.ling.washington.edu/t/invalid-mrs-produced-by-the-spanish-grammar/987/1 "2023-11-10T10:03:55Z")
Started as this thread: [MRS, DMRS not displayed in LTDB - #6 by goodmami](https://delphinqa.ling.washington.edu/t/mrs-dmrs-not-displayed-in-ltdb/986/6) So the Spanish grammar produces invalid MRSs. I don’t really know why this is; is this something to do with the original version of the grammar or with the token mapping that we added? @goodmami is saying _top_ and _list_ are a problem here. I think CTO and CFROM as well as CARG come from the token mapping machinery. I don’t know what WLINK is… Help, anyone? 🙂 ```auto >>> from delphin.codecs import simplemrs >>> s = """[LTOP: h0 INDEX: e2 [ e SF: prop TENSE: untensed MOOD: indicative] RELS: < [named_rel<-1:-1> LBL: h4 CARG: "pitágoras" WLINK: list CFROM: *top* CTO: *top* ARG0: x3 ARG1: u9] ["_ladrar_v_rel"<-1:-1> LBL: h1 WLINK: list CFROM: *top* CTO: *top* ARG0: e2 ARG1: x3] > HCONS: < h0 qeq h1 > ]""" >>> m = simplemrs.loads(s) >>> m [] >>> print(simplemrs.dumps(m)) [TOP: h0 INDEX: e2 [ e SF: prop TENSE: untensed MOOD: indicative] RELS: < [named<-1:-1> LBL: h4 ARG0: x3 ARG1: u9 CFROM: *top* CTO: *top* WLINK: list CARG: "pitágoras"] [_ladrar_v<-1:-1> LBL: h1 ARG0: e2 ARG1: x3 CFROM: *top* CTO: *top* WLINK: list] > HCONS: < h0 qeq h1 > ] >>> from delphin import dmrs >>> dmrs.from_mrs(m[0]) Traceback (most recent call last): [...] ValueError: Invalid variable string: list ``` ---
**Author:** ![olzama](https://delphinqa.ling.washington.edu/user_avatar/delphinqa.ling.washington.edu/olzama/32/6_2.png) [@olzama](https://delphinqa.ling.washington.edu/u/olzama)\ **Post date:** [November 10, 2023, 12:05pm UTC](https://delphinqa.ling.washington.edu/t/invalid-mrs-produced-by-the-spanish-grammar/987/2 "2023-11-10T12:05:41Z")
Currently in the grammar, in the `tmt.tdl`: ```auto relation :+ [ CFROM *top*, CTO *top* ]. ``` In `fundamentals.tdl`: ```auto ; WLINK links semantic relation to input string elements, more or ; less. This becomes useful whenever a grammar is used in some ; application. relation := avm & [ LBL handle, PRED predsort, WLINK list, CFROM *top*, CTO *top* ]. ``` How should I change that? ---
**Author:** ![olzama](https://delphinqa.ling.washington.edu/user_avatar/delphinqa.ling.washington.edu/olzama/32/6_2.png) [@olzama](https://delphinqa.ling.washington.edu/u/olzama)\ **Post date:** [November 10, 2023, 12:30pm UTC](https://delphinqa.ling.washington.edu/t/invalid-mrs-produced-by-the-spanish-grammar/987/3 "2023-11-10T12:30:42Z")
The ERG seems similar: ```auto LNK links semantic relation to input string elements ; CFROM and CTO used for characterization relation_min := *avm*. relation := relation_min & [ PRED predsort, LBL handle, LNK *list*, CFROM *top*, CTO *top* ]. ``` So, not sure why in the ERG it’s fine but in the SRG it’s not?.. ---
**Author:** ![olzama](https://delphinqa.ling.washington.edu/user_avatar/delphinqa.ling.washington.edu/olzama/32/6_2.png) [@olzama](https://delphinqa.ling.washington.edu/u/olzama)\ **Post date:** [November 10, 2023, 2:13pm UTC](https://delphinqa.ling.washington.edu/t/invalid-mrs-produced-by-the-spanish-grammar/987/4 "2023-11-10T14:13:07Z")
In the ERG treebanks, I am not seeing that LNK, CTO, CFROM stuff in the MRS: ```auto RELS: < [proper_q<0:6> LBL: h4 ARG0: x3 [ x PERS: 3 NUM: sg IND: +] RSTR: h5 BODY: h6 ] [named<0:6> LBL: h7 CARG: "Abrams" ARG0: x3] [_bark_v_1<7:13> LBL: h1 ARG0: e2 ARG1: x3] > HCONS: < h0 qeq h1 h5 qeq h7 > ``` How do I suppress it similarly in the SRG?.. ---
**Author:** ![olzama](https://delphinqa.ling.washington.edu/user_avatar/delphinqa.ling.washington.edu/olzama/32/6_2.png) [@olzama](https://delphinqa.ling.washington.edu/u/olzama)\ **Post date:** [November 10, 2023, 2:19pm UTC](https://delphinqa.ling.washington.edu/t/invalid-mrs-produced-by-the-spanish-grammar/987/5 "2023-11-10T14:19:30Z")
The following looks relevant in the ERG’s `ace/config.tdl`: ```auto mrs-deleted-roles := IDIOMP LNK CFROM CTO --PSV ;; starting here, mrs deleted roles left over from old ACE config file WLINK PARAMS. ``` So, adding the following to the SRG’s ace/config.tdl and then recompiling the grammar and the LTDB database fixes the problem: ```auto mrs-deleted-roles := IDIOMP WLINK CFROM CTO --PSV ;; starting here, mrs deleted roles left over from old ACE config file WLINK PARAMS. ``` I don’t know the meaning of the last line though; not sure if it is relevant. ---
**Author:** ![arademaker](https://delphinqa.ling.washington.edu/user_avatar/delphinqa.ling.washington.edu/arademaker/32/45_2.png) [@arademaker](https://delphinqa.ling.washington.edu/u/arademaker)\ **Post date:** [November 11, 2023, 2:57pm UTC](https://delphinqa.ling.washington.edu/t/invalid-mrs-produced-by-the-spanish-grammar/987/6 "2023-11-11T14:57:32Z")
it can be important to check if LKB also has a similar post processing option. I remember some discussion about the importance of consolidate the config options used by different processors (actually Ace and LKB) are the only two in use right? I wonder in what step the Link information was projected from the EP arguments to the `` pair right next to the predicate name.