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: Skeletal muscles must work in pairs to move bones back and forth at a joint because they can only contract. Question: Skeletal muscles must work in pairs to move bones back and forth at a joint because they can only do what?
Example Output: contract

Example Input: Sentence: Fire extinguisher of the following items is necessary in a laboratory for safety purposes. Question: Which of the following items is necessary in a laboratory for safety purposes?
Example Output: Fire extinguisher

Example Input: Sentence: The ileocecal valve, a sphincter, is usually in a constricted state, but when motility in the ileum increases, this sphincter relaxes, allowing food residue to enter the first portion of large intestine. Question: The ileocecal valve, a sphincter, is usually in a constricted state, but when motility in the ileum increases, this sphincter relaxes, allowing food residue to enter the first portion of what?
Example Output:
large intestine