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

[Q]: Sentence: A black hole is smaller in size than the sun. Question: Which will have the strongest gravity?
[A]: Black hole


[Q]: Sentence: David and Joe live together and go out at the same time. David drove his car and Joe rode his skateboard. Question: After one hour, who traveled less distance?
[A]: Joe


[Q]: Sentence: John and Jim are going to work.  John picks up Jim on the way. Question: Who traveled a shorter distance?
[A]:
Jim