Task: Question Answering
Input (English): Elizabeth entered the den. Ethan entered the den. The celery is in the blue_bathtub. Elizabeth moved the celery to the red_envelope. Lucas entered the cellar. Logan entered the cellar. The orange is in the green_bucket. Lucas moved the orange to the green_box. Elizabeth is in the den. Lucas entered the den. The celery is in the red_envelope. Elizabeth moved the celery to the blue_bathtub. Ethan is in the den. Logan entered the den. The lettuce is in the red_envelope. Ethan moved the lettuce to the blue_bathtub. Where is the lettuce really?
Output (English): blue_bathtub