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: When the core of a star begins to run low on hydrogen, it contracts. Question: What happens to the core of a star when it begins to run low on hydrogen?
Example Output: it contracts

Example Input: Sentence: Jaws and pharynx muscles are used to pump water over the gills. Question: What muscles are used to pump water over the gills?
Example Output: jaws and pharynx

Example Input: Sentence: Amoebas and paramecia are examples of protozoa. Question: Amoebas and paramecia are examples of what?
Example Output:
protozoa