remove objects from grammar

psGrammar/demos/bringObject.jsgf

@@ -4,4 +4,4 @@ grammar bringObject;
 public <command> 		= [please] <bring> [me] [the | a] <object>;
 
 <bring> = bring | hand | give;  
-<object> = sponge | cleanser | (red wine) | (juice pack) | (cola) | (tropical juice) | (milk) | (iced tea) | (orange juice) | (tuna) | (tomato soup) | spam | mustard | (strawberry jello) | (chocolate jello) | (coffee grounds) | sugar | pear | plum | peach | lemon | orange | strawberry | banana | apple | (tennis ball) | (soccer ball) | (rubiks cube) | dice | baseball | pringles | cornflakes | cheezit | spoon | plate | cup | fork | bowl | knife;
+<object> =  mustard | peach | orange | banana | apple | pringles  | cheezit  | cup | bowl;