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

Ex Input:
statement: working out requires a lot of fuel., question: What does working out require?

Ex Output:
fuel


Ex Input:
statement: eagles  use pectorals to move their wings, question: What do eagles use to move wings?

Ex Output:
pectorals


Ex Input:
statement: citric chemicals will turn the color of litmus paper from blue to red, question: What will turn the color of litmus paper from blue to red?

Ex Output:

citric chemicals