Given a statement and question, generate the answer to the question such that the answer is contained in the statement.

Example Input: statement: certain therapsids became more mammal-like as they grew., question: What did therapsids become as they grew?
Example Output: mammal

Example Input: statement: Amphibians are hunters of insects, question: Who are hunters of insects?
Example Output: Amphibians

Example Input: statement: A person's arm straightens when muscles antagonistic to biceps contract, question: What straightens when muscles antagonistic to biceps contract?
Example Output:
arm