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

Q: Sentence: A halter sliding across a barn floor gets hotter then one sliding across a field. Question: Which surface forces the halter to travel at a lower rate of speed?

A: barn floor
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Q: Sentence: Gabriel was playing hockey. He hit the puck and it slid quickly on the ice, then moved off the ice onto a tile floor and moved slower. Question: Which surface is flatter?

A: ice
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Q: Sentence: After John threw an item into a black trash bag, he noticed the item had ripped a hole in the bag. The next day, he threw a similar item into a white trash bag, and noticed that it didn't tear a hole. Question: What trash bag is likely made of thicker material?

A:
white trash bag
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