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

[Q]: Sentence: A microphone rolling across a chair makes it get hotter then one rolling across a stage. Question: Which surface is the most smooth?
[A]: stage


[Q]: Sentence: Jason has just woken up from a coma and needs to learn to use his arms and legs again.  He goes to the park to throw a ball with his friend Andy. Question: Who can throw the ball harder?
[A]: Andy


[Q]: Sentence: A skittle rolls at a lesser rate of speed in a bag compared to a box. Question: Which surface will make the skittle heat up less when rolling around?
[A]:
box