Task: Question Understanding
Input (English): Question: David was walking through his neighborhood and found a rock that had imprints of shells. What can you conclude about that area? (A) The area was once covered with trees. (B) The rock was carried there by the wind. (C) There had once been an ocean or river located there. (D) The area had a large amount of snow at one time.?
Output (English): rock, imprints, shells., conclude, area?