demochallenge commands.jsfg

ps-grammar/demoChallenge/commands.jsgf

@@ -2,6 +2,7 @@
 grammar bebot_demo;
 public <statement> = [tobi] [please] <command> [please] [tobi];
 
-<command> = <clean>;
+<command> = <clean> | <party>;
 <clean> = clean up | start cleaning;
+<party> = party starts | party begining;