extended cf syntax; Det experiment

lib/resource/exper/Det.cf

@@ -0,0 +1,25 @@
+NP  ::= Det CN ;
+Det ::= Predets Quants ;
+
+Predets ::= ;
+
+Predets ::= "only" | "just" ;
+Quants  ::= "this" | "my" | "one" | "the" | "a" | "every" | "some" ;
+
+NP   ::= Detp CNp ;
+Detp ::= Predet Quant Num ;
+
+Predet ::= ;
+Quant  ::= ;
+Num    ::= ;
+
+Predet ::= "all" | "only" | "just" ;
+
+Quant ::= "these" | "my" | "many" | "some" ;
+
+Num ::= "four" ;
+
+CNp ::= "sons" ;
+CN  ::= "son" ;
+
+--