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

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?
ice

Sentence: Superman is the strongest person on earth. Him and Batman decide to see who can throw a car the longest distance. Question: Who wins this face off?
Superman

Sentence: Dom and Brian race their fast cars down a quarter mile stretch of road. Dom's car is faster than Brian's. Question: Who wins the race?

Dom