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: Mountain building and earthquakes are some of the responses of rocks when subected to stress. Question: Mountain building and earthquakes are some of the responses of rocks when subected to what?
Example Output: stress

Example Input: Sentence: There are four valves in the heart. Question: How many valves are in the heart?
Example Output: four

Example Input: Sentence: Space is beyond the atmosphere. Question: What is beyond the atmosphere?
Example Output:
space