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

Ex Input:
Lizards keep their eggs in rotting trees.

Ex Output:
What do Lizards keep their eggs in?

Ex Input:
scales protect trout from predators and parasites

Ex Output:
What do scales protect trout from?

Ex Input:
eagle eggs' shells and antacids are made of the same material

Ex Output:
What are the shells of eagle eggs made of?