Task: Question Answering
Input (English): Phone rang. Jack entered the garage. Mason entered the garage. The persimmon is in the green_pantry. Mason exited the garage. Phone rang. Jack moved the persimmon to the green_suitcase. Mason entered the den. Phone rang. Charlotte entered the den. The celery is in the red_envelope. Charlotte exited the den. Mason moved the celery to the green_envelope. Jack is in the garage. Charlotte entered the garage. The persimmon is in the green_suitcase. Charlotte exited the garage. Jack moved the persimmon to the green_pantry. Phone rang. Amelia entered the den. Mason is in the den. The celery is in the green_envelope. Mason exited the den. Amelia moved the celery to the red_envelope. Phone rang. Where was the celery at the beginning?
Output (English): red_envelope