Task: Question Answering
Input (English): A scientist lost the cap to an ammonia bottle, so she moved the ammonia into a clean container with a lid. What else should she do to be safe?  
 (A) Recycle the old ammonia bottle. (B) Label the new container clearly. (C) Heat the new container to seal the lid. (D) Store the new container in the refrigerator.
Output (English): B