Update grammar

grammar

@@ -45,7 +45,6 @@ Preposition ::= ("with" | "to" | "in" | "of" | "at" | "for" | "off" | "on" | "ov
 
 Article ::= ( "a" | "an" | "the")?
 
-at, for, in, off, on, over, and under
 /* Conjunction */
 /* Used to connect words, phrases, clauses, or sentences */
 Conjunction ::= ("and" | "or" | "but")
\ No newline at end of file