Thank you. Hold on. Before we go further, I won't give up on getting Gemma to
get stage 1 mini-adventure rock-solid. 

Should we introduce one more concept for it: defining exits for every room

That way, it doesn't need to even bother using a "go" verb. 

It would just, when flushing the environment, add each exit, to the room
labels?

How can we do that so that it's simple, consistent? 

Should we also consider defining persistent session-verbs, that are not
flushed? I think we should. 

How can we conceptualize, and name them, in such a way, that Gemma realizes,
which are persistent commands, and which are per-room/environment flushable
commands?