Avery entered the back yard. Mason entered the back yard. The corn is in the red bathtub. Avery exited the back yard. Mason moved the corn to the green crate. Avery entered the back yard.
Mason think that Avery searches for the corn in the green crate.
 Mason think that Avery searches for the corn in the red_bathtub
 Mason think that Avery searches for the corn in the green_crate