fixd

ps-grammar/confirm/confirm.jsgf

 #JSGF V1.0;
 grammar ToBI_confirm;
-public <confirm> = [tobi] (<confirm_yes> | <confirm_no>) [tobi];
+public <confirm> = <confirm_yes> | <confirm_no>;
 <confirm_yes> = (tobi yes);
 <confirm_no> = (tobi no);