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

Example Input: Sentence: The mass of Mars is greater then that of Venus. Question: Which planet emits stronger gravity?
Example Output: Mars

Example Input: Sentence: One of Sarah's neighbors spilled dog food all over the stairs. The dog food pieces are on three stairways and all over the landings. Sarah gets mad and kicks a piece of dog food. The dog food flies across the wooden planks from one side of the staircase landing to the other. The dog food reaches the neighbor's door mat. It moves a few inches across the doormat. Question: Why didn't the dog food move further across the doormat?
Example Output: The door mat is a spikier surface

Example Input: Sentence: Johnny was a Taekwondo black belt. Daniel was a white belt. They each kicked at each other at the same time. Question: Who's kick covered the least ground?
Example Output:
Daniel