In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.

Example Input: Sentence: Aerobic exercise helps improve the cardiovascular system, while anaerobic exercise causes muscles to get bigger and stronger. Question: Aerobic exercise helps improve the cardiovascular system, while what exercise causes muscles to get bigger and stronger?
Example Output: anaerobic

Example Input: Sentence: The ears are an external feature in human beings is responsible for balance. Question: What external feature in human beings is responsible for balance?
Example Output: ears

Example Input: Sentence: Zeros that appear in front of all of the nonzero digits are called left-end zeros. Question: Zeros that appear in front of all of the nonzero digits are called what?
Example Output:
left-end zeros