added first draft of patents query grammar

examples/query/small/patentsQuery/QueryPatEng2.gf

@@ -0,0 +1,69 @@
+--# -path=.:..:alltenses
+
+concrete QueryPatEng of QueryPat = QueryPatI with 
+  (Syntax = SyntaxEng),
+  (Lang = LangEng),
+  (LexPatsQuery = LexPatsQueryEng) **
+
+open
+  LexPatsQueryEng,
+  ParadigmsEng,
+  IrregEng,
+  SyntaxEng,
+  ExtraEng,
+  (L = LangEng),
+  (M = MakeStructuralEng),
+  Prelude,
+  QueryEng
+in {
+
+-- lexicon
+
+oper mkDrug : Str -> NP = 
+    \p -> mkNP  (mkPN p) ;
+
+oper mkPatents : Str -> NP = 
+   \p -> mkNP (mkPN p) ;
+
+oper mkChemicalSubstance : Str -> NP = 
+   \p -> mkNP (mkPN p) ;
+
+oper mkDrugUsageForm : Str -> NP =
+   \p -> mkNP (mkPN p) ;
+
+oper  mkPatentNumber : Str -> NP = 
+   \p -> mkNP (mkPN p) ;
+
+oper  mkApplicant : Str -> NP = 
+   \p -> mkNP (mkPN p) ;
+
+oper  mkApplicationNumber : Str -> NP = 
+   \p -> mkNP (mkPN p);
+
+
+
+
+lin
+
+Aspirin = mkDrug "DRUG" ;
+
+Pats1230 = mkPatents "PATENT" ;
+
+Hydrogen = mkChemicalSubstance "CHEMICAL_SUBSTANCE" ;
+
+Inhalation = mkDrugUsageForm "DRUG_USAGE_FORM" ;
+
+P123 = mkPatentNumber "PATENT_NUMBER" ;
+
+JohnDoe = mkApplicant "APPLICANT" ;
+
+A123 = mkApplicationNumber "APPLICATION_NUMBER" ;
+
+
+ OnDate = mkPatsDate on_Prep ;
+ BeforeDate  = mkPatsDate before_Prep ;
+ AfterDate = mkPatsDate after_Prep ;
+
+oper mkPatsDate : Prep -> Adv = \prep -> Syntax.mkAdv prep (mkNP (mkPN "DATE")) ;
+
+}