+> back
+
+You can't get there from here.
+
+You're in front of building.
+
+> take grate
+
+I see no grate here.
+
+> no rub
+
+OK
+
+> say axe
+
+Okay, "axe".
+
+> say rub
+
+Okay, "rub".
+
+> say grate
+
+Okay, "grate".
+
+> _
+
+Sorry, I don't know the word "_".
+
+> back
+
+Sorry, but I no longer seem to remember how it was you got here.
+
+You're in front of building.
+
+> seed
+
+This command requires a numeric argument.
+
+You're in front of building.
+
+> waste
+
+This command requires a numeric argument.
+
+You are standing at the end of a road before a small brick building.
+Around you is a forest. A small stream flows out of the building and
+down a gully.
+
+> eat grate
+
+I see no grate here.
+
+> 23
+
+Sorry, I don't know the word "23".
+
+> eat building