William entered the hallway. Mia entered the hallway. The plum is in the red treasure chest. William exited the hallway. Mia moved the plum to the red bottle. William entered the hallway.
William think that Mia searches for the plum in the red bottle.
 William think that Mia searches for the plum in the red_treasure_chest
 William think that Mia searches for the plum in the red_bottle