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

Ex Input:
Smog emissions are dangerous.

Ex Output:
What emissions are dangerous?


Ex Input:
Balanced diet is a way of eating that promotes good living.

Ex Output:
What is a way of eating that promotes good living?


Ex Input:
Water must not be polluted to be safe.

Ex Output:

What must not be polluted to be safe?