a simpler and better Demo file set for resource grammars

lib/src/demo/DemoHin.gf

@@ -1,24 +1,10 @@
 --# -path=.:alltenses
 
-concrete DemoHin of Demo = 
-  NounHin - [AdvCN,PredetNP,PPartNP,RelNP,RelCN,SentCN,
-             ApposCN,MassNP,DetNP,ComplN3,Use2N3,Use3N3,AdvNP], 
---  VerbHin, 
-  ClauseHin, --
-  AdjectiveHin - [SentAP,ComplA2,UseA2,DemoA2],
-  AdverbHin,
-  NumeralHin,
-----  SentenceHin,
-  QuestionHin - [QuestVP,QuestSlash],
-----  RelativeHin,
-----  ConjunctionHin,
-----  PhraseHin,
-----  TextX,
-----  IdiomHin,
-  StructuralHin - [everybody_NP,everything_NP,something_NP],
-  LexiconHin
-  ** {
+concrete DemoHin of Demo = LangHin ** 
+  open LangHin in {
 
-flags startcat = Phr ; unlexer = text ; lexer = text ;
+  lin 
+    AdjN ap n = AdjCN ap (UseN n) ;
+    AdAdj ad a = AdAP ad (PositA a) ;
 
-} ;
+}