fix _

psGrammar/tasks/restaurant/order_apartment.jsgf

@@ -7,21 +7,21 @@ public <restaurant> = ([tobi] [(i want) | (bring me)] [one | a ] <objects> [plea
 
 <food> =  ((pringles) |
     (fork) | 
-    (potted_meat_can) | 
-    (cracker_box) |
-    (mustard_bottle)|
+    (potted meat can) | 
+    (cracker box) |
+    (mustard bottle)|
     (bowl) | 
     (plate) |
-    (soap_box) |
-    (sugar_box) |
-    (choco_krispies) | 
+    (soap box) |
+    (sugar box) |
+    (choco krispies) | 
     (spoon) | 
     (knife) |
     (orange)  |
     (banana) | 
     (pear)  | 
     (peach)|
-    (dishwasher_tab));
+    (dishwasher tab));
     
 <drinks> = ((milk) | (cup) | (coke) | (milo) | 
-    (bleach_cleanser));
+    (bleach cleanser));
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