Extending resource.

1 files changed, 33 insertions, 0 deletions

diff --git a/grammars/database/Database.gf b/grammars/database/Database.gf
new file mode 100644
index 000000000..eb0c08d9f
--- /dev/null
+++ b/grammars/database/Database.gf
@@ -0,0 +1,33 @@
+abstract Database = {
+
+flags startcat=Query ;
+
+cat 
+  Query ; 
+  Category ; Subject ; Value ; Property ; Relation ; Comparison ; Name ;
+  Feature ;
+
+fun 
+  WhichAre  : Category -> Property -> Query ;
+  IsThere   : Category             -> Query ;
+  AreThere  : Category             -> Query ;
+  IsIt      : Subject -> Property  -> Query ; 
+  WhatIs    : Value                -> Query ;
+
+  MoreThan   : Comparison -> Subject  -> Property ;
+  TheMost    : Comparison -> Category -> Value ;
+  Relatively : Comparison -> Category -> Property ;
+
+  RelatedTo  : Relation -> Subject -> Property ;
+
+  Individual : Name -> Subject ;
+  AllN       : Category -> Subject ;
+  Any        : Category -> Subject ;
+  MostN      : Category -> Subject ;
+  EveryN     : Category -> Subject ;
+
+  FeatureOf  : Feature -> Subject -> Subject ;
+  ValueOf    : Feature -> Name -> Value ;
+
+  WithProperty : Category -> Property -> Category ;
+} ;