Chloe entered the hall. Chloe exited the hall. Oliver entered the staircase. Mason entered the staircase. The radish is in the red basket. Oliver exited the staircase. Mason moved the radish to the green crate.
Mason think that Oliver searches for the radish in the red basket.
 Mason think that Oliver searches for the radish in the green_crate
 Mason think that Oliver searches for the radish in the red_basket