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

Ex Input:
mosquitos are naturalized on every continent except the coldest

Ex Output:
What are naturalized on every continent except the coldest?


Ex Input:
A radio is used for exchange of knowledge.

Ex Output:
What is a radio used for?


Ex Input:
significant physical, emotion, and social changes can be a trying time

Ex Output:

What types of changes can be a difficult time?