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: Trees need the vascular to transport nutrients. Question: What system do trees need to transport nutrients?
Example Output: vascular

Example Input: Sentence: Different media affect the speed of light. Question: Different media affect what property of light?
Example Output: speed

Example Input: Sentence: A change of season and less food usually cause certain animals to migrate. Question: Which two environmental changes usually cause certain animals to migrate?
Example Output:
change of season and less food