I'm afraid I don't understand.
+> lock food
+
+I don't know how to lock or unlock such a thing.
+
+> unlock food
+
+I don't know how to lock or unlock such a thing.
+
> extinguish food
I'm afraid I don't understand.
> score
-You have garnered 27 out of a possible 430 points, using 101 turns.
+You have garnered 27 out of a possible 430 points, using 103 turns.
> z
> score
-You have garnered 27 out of a possible 430 points, using 103 turns.
+You have garnered 27 out of a possible 430 points, using 105 turns.
> quit keys
OK
-You scored 27 out of a possible 430, using 105 turns.
+You scored 27 out of a possible 430, using 107 turns.
You are obviously a rank amateur. Better luck next time.