diff --git a/ps-grammar/restaurant/restaurant.jsgf b/ps-grammar/restaurant/restaurant.jsgf
index 3c547ef908276658b6363d915c23fd4a784dbdb2..ccd78a23d14a9e9acac535626ef6bb05e38960de 100644
--- a/ps-grammar/restaurant/restaurant.jsgf
+++ b/ps-grammar/restaurant/restaurant.jsgf
@@ -6,11 +6,11 @@ public <restaurant> = [tobi] [please] <command> [please] [tobi];
 <followMe> = (follow me) | (come [(with me) | here]) | (keep up);
 <stop> = stop [this];
 <beverages> = <objectCategory> | <objects>;
-<objectCategory> = drinks | food;
-<objects> = <drinks> | <food>;
+<objectCategory> = drinks | snacks;
+<objects> = <drinks> | <snacks>;
 
-<drinks> = milk | coke | beer;
-<food> = pringles red | pringles green | pringles blue | cookies;
+<drinks> = (orange juice) | (fruit juice) | (ice tea) | coffee | beer;
+<snacks> = chocolates | (chewing gum) | peanuts;
 
 <ordering> = ordering;
 <deliveryLocations> = table (one | two | three);