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

Sentence: Lisa was playing with two model rockets. She shot off the red one and the black one at the same time. After 30 seconds the black one was higher in the sky. Question: Which had more speed?
the black one

Sentence: Jane sees two stars directly overhead. One of them appears quite bright and the other one is dim. Question: Why?
the dim one is further away

Sentence: A crab can scurry a greater distance over a beach then over an ocean floor. Question: Which surface gives the crab more resistance?
ocean floor