Alexander entered the hall. Hannah entered the hall. The turnip is in the red_drawer. Hannah exited the hall. Alexander moved the turnip to the red_suitcase. Hannah entered the porch. Alexander entered the porch. The asparagus is in the green_pantry. Alexander exited the porch. Hannah moved the asparagus to the blue_envelope. Alexander entered the basement. Liam entered the basement. The lime is in the green_crate. Phone rang. Liam exited the basement. Alexander moved the lime to the green_envelope. Phone rang. Mason entered the den. Liam entered the den. The broccoli is in the blue_bathtub. Phone rang. Liam exited the den. Mason moved the broccoli to the red_cupboard. Where does Mason think that Liam searches for the broccoli?
blue_bathtub