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

Ex Input:
statement: kidney infection can be treated with drugs, question: What can be used to treat kidney infection?

Ex Output:
drugs


Ex Input:
statement: Lineages are useful tools for predicting, question: What are useful tools for predicting?

Ex Output:
Lineages


Ex Input:
statement: experiments are often done for learning and development, question: What is often done for learning and development?

Ex Output:

experiments