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: Sally was running and sliding through the kitchen on the linoleum in her socks and having a lot of fun. She slid from the linoleum to the carpet and came to an abrupt stop. Question: Which surface has less resistance?
Example Output: Linoleum

Example Input: Sentence: Lisa is studying for her exam. She is working at her desk on the computer and reading. She has no issues reading the tiny print. Question: The light source in the room must be a?
Example Output:
Desk Lamp