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

Ex Input:
a thinning and weakening of bone is an affliction in which osteoclasts are more active than osteoblasts

Ex Output:
What are more active than osteoblasts?


Ex Input:
Semen are made in the testicles

Ex Output:
What are semen made in?


Ex Input:
Bladder infections can be treated with drugsprescribed by some humans that make mistakes.

Ex Output:

What can some humans use to treat bladder infections?