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

Ex Input:
statement: muscles contracting cause a person's arm to straighten, question: What causes a person's arm to straighten?

Ex Output:
muscles contracting


Ex Input:
statement: All cells have cellular matter inside the plasma membrane., question: What membrane does all cells have cellular matter inside?

Ex Output:
plasma


Ex Input:
statement: Some crocodiles can go several weeks between meals., question: How long can some crocodiles go between meals?

Ex Output:

several weeks