You are given a sentence and a question. You're expected to write the correct answer based on the sentence.

Example Input: Sentence: Toby went ice skating during the winter and noticed that he hardly had to put any effort into moving forward when he switched from the sidewalk to the ice on the pond. Question: Which surface was smoother?
Example Output: Ice pond

Example Input: Sentence: Mary's kitchen floor is slicker then her hallway floor. She was feeding her dogs one day and some kibble slid across both surfaces. Question: Which surface caused the kibble to heat up less?
Example Output: kitchen floor

Example Input: Sentence: Jim was pulling a trailer full of lemons behind his ATV. He was riding with his friend Bill who had nothing behind his ATV. They were trying to speed up to get home because it looked like it was going to rain. Question: Who was able to pull ahead of the other?
Example Output:
Bill