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Notes

Our current grammar parses test item #152 ('I can eat glass'; see above)
and produces the correct semantics:

h1 e2{ prop-or-ques tense aspect mood semsort }  
{ h3:_glass_n_rel<>(x4{ semsort bool cog-st 3rd number inanimate })  
  h5:exist_q_rel<>(x4,h6.h7)  
  h8:_eat_v_rel<>(e9{ tense aspect mood iforce semsort }, x10{ semsort in-foc + 1st sg gender }, x4)  
  h11:_can_v_rel<>(e2,h12) }   
{ h6 =q h3 h12 =q h8 }  

This example also successfully generates.

EB> and generates and generates.  You should look into taht and try
to cut it back...

and split off the [ VAL.SPR < [ HEAD det ] > ] (nouns) and [ VAL.SPR < > ]
(pronouns) constraints into two separate subtypes:

EB> This isn't going to get you correct semantics, unless the
pronouns carry their own quantifiers.  Better to say that they
are both looking for specifiers, but the pronouns' SPR values
are [OPT +], meaning that the bare-np rule *must* fire.

(157)  
Source: d  
Vetted: s  
Judgment: g  
Phenomena: pn  
lé ȟeíle héčha.  
lé ȟeíle héčha  
lé ȟeíle héčha  
that volcano be_of_such  
'It's a volcano.'  

EB> Something's broken in the HCONS list somewhere as well ---
the qeq for volcano is getting dropped.  There is also spurious
ambiguity related to a lexical rule optionally applying to héčha.


The postpositions now produce the correct semantics. We get two
ambiguous parses with identical semantics; the ambiguity, however is
purely structural and the only differential is whether the no-drop
subject rule is applied to the verb or not. (It makes no difference,
since in either case the SUBJ is satistfied by the final SUBJ-HEAD
rule.)

EB> That's the rule I noticed in the other example.  You don't
want this to be optional --- so make the position class required,
or rule it out.

This example surprisingly no longer successfully generates. We were thus
far unable to determine what is preventing it from generating, though we
suspect it has something to do with the verb itself being semantically
empty. This is something we plan to dig into further for next week.

EB> When I try to generate from that example and then do "Generate | Show gen chart", it looks like the verb isn't there.  

EB> This message on loading:

Warning: HÁŊ has no semantics and no filter rule

[...]

háŋ_gr := generator_rule &
[ CONTEXT.RELS <! [ PRED "non_existing_rel" ] !>,
  FLAGS.TRIGGER "háŋ" ].


EB> suggests that the problem is that you don't have a trigger rule for it.
See http://moin.delph-in.net/LkbGeneration

To fix this we decided to have the verb supply the missing quantifier:

EB> Is this because you never see an overt determiner there?

