>open door
The door explains, in a haughty tone, that the room is occupied by a
super-intelligent robot and that lesser beings (by which it means you) are not
to be admitted. "Show me some tiny example of your intelligence," it says,
"and maybe, just maybe, I might reconsider."

>get tea
no tea: Dropped.

>get no tea
no tea: Taken.

>inventory
You have:
  no tea
  tea
  a small key
  a flowerpot
  a thing your aunt gave you which you don't know what it is
  a babel fish (in your ear)

>open door
The door is almost speechless with admiration. "Wow. Simultaneous tea and no
tea. My apologies. You are clearly a heavy-duty philosopher." It opens
respectfully.