+You're in front of building.
+
+> stream
+
+You are in a valley in the forest beside a stream tumbling along a
+rocky bed.
+
+> lock
+
+There is nothing here with a lock!
+
+> take water
+
+You have nothing in which to carry it.
+
+> building
+
+You're in front of building.
+
+> cave
+
+I don't know where the cave is, but hereabouts no stream can run on
+the surface for long. I would try the stream.
+
+You're in front of building.
+
+> enter stream
+
+Your feet are now wet.
+
+> try three words
+
+Please stick to 1- and 2-word commands.
+
+> listen
+
+The stream is gurgling placidly.
+
+> carry
+
+Carry what?
+
+> forward
+
+I am unsure how you are facing. Use compass points or nearby objects.
+
+You're in front of building.
+
+> eat
+
+Eat what?
+
+> drink
+
+You have taken a drink from the stream. The water tastes strongly of
+minerals, but is not unpleasant. It is extremely cold.
+
+> throw keys
+
+I see no keys here.
+
+> find keys
+
+I can only tell you what you see as you move about and manipulate
+things. I cannot tell you where remote things are.
+
+> inven keys
+
+I can only tell you what you see as you move about and manipulate
+things. I cannot tell you where remote things are.
+
+> nothing
+
+OK