Let's take care of that. Which of these rules are necessary to make the sequence more intelligent?

if the door is locked
then unlock itif the door is closed
then open it
if the door is open
then enter the roomif you are in the room
then close the door

Nailed it! These rules make sure the door is unlocked and open before you enter the room. The others aren't necessary.

Don't we only need to check if the door is locked and closed?