PULL       | *                                      | 1    | You don't see anything to pull |
PULL       | IN(LEVER_ROOM)                         | 10   | What do you want to pull? |
PULL LEVER | IN(LEVER_ROOM)                         | 100  | You pull the lever. Nice. | ENABLE(LEVER_PULLED)
PULL LEVER | IN(LEVER_ROOM) & ENABLED(LEVER_PULLED) | 1000 | You already pulled it.    |