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: Most of the heat that enters the mesosphere comes from the stratosphere. Question: Most of the heat that enters the mesosphere comes from where?
Example Output: the stratosphere

Example Input: Sentence: The overall purpose of the light-dependent reactions is to convert light energy into this? Question: The overall purpose of the light-dependent reactions is to convert light energy into this?
Example Output: chemical reactions

Example Input: Sentence: Birds live and breed on seven of the continents. Question: On how many of the continents do birds live and breed?
Example Output:
seven