Task: Question Understanding
Input (English): Question: Base your answer on the information below and on your knowledge of science. A baseball strikes the roof of a car and dents it. The paint on the roof begins to crack and chip, exposing the metal. The exposed metal on the roof rusts, eventually causing a small hole in the roof. Which event is a chemical change? (1) The baseball strikes the roof. (2) The roof of the car dents. (3) The paint cracks and chips. (4) The exposed metal rusts.?
Output (English): baseball, strikes, roof, dents, paint, crack, exposed, metal, causing, hole, chemical, change?