diff --git a/ps-grammar/homecoming/hc.jsgf b/ps-grammar/homecoming/hc.jsgf
index d57c066032df978d5399789a3a4abf21136c3062..c857156b74e0c16151564947364bdc3a096bee0d 100644
--- a/ps-grammar/homecoming/hc.jsgf
+++ b/ps-grammar/homecoming/hc.jsgf
@@ -1,11 +1,10 @@
 #JSGF V1.0;
 grammar ToBI_Ask4Task;
 
-public <statement> = [tobi] ( <learn> | <joke> | <introduce> ) [tobi];
+public <statement> = [tobi] ( <learn> | <introduce> ) [tobi];
 
 
-<learn> = (learn [the] bebots);
-<joke> = [tell] [me] [a] (  joke | gag );
-<introduce> = (introduce [yourself] );
+<learn> = ( (learn | find | search ) [for] [the] (bebots | bebot) )  ;
+<introduce> = (introduce [yourself] ) | (tell me [something] about you) | (who are you);