Logan entered the closet. Liam entered the closet. Mia entered the staircase. Mia exited the staircase. The plum is in the blue pantry. Liam exited the closet. Liam entered the staircase. Logan moved the plum to the green treasure chest.
The plum at the beginning was in the blue pantry.
 the plum at the beginning was in the green_treasure_chest
 the plum at the beginning was in the blue_pantry