yesno

ps-grammar/confirm/confirm.jsgf

 #JSGF V1.0;
 grammar ToBI_confirm;
 public <confirm> = [tobi] (<confirm_yes> | <confirm_no>) [tobi];
-<confirm_yes> =  ([please] yes [please]) | ([that is] correct);
-<confirm_no> = ([that is] not correct) | (no [thanks]); 
+<confirm_yes> = (tobi yes);
+<confirm_no> = (tobi no);