Abigail entered the basement. Mason entered the basement. The onion is in the green box. Mason exited the basement. Abigail moved the onion to the red crate.
Mason think that Abigail searches for the onion in the green box.
 Mason think that Abigail searches for the onion in the red_crate
 Mason think that Abigail searches for the onion in the green_box