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

[EX Q]: Frogs use a larynx to interface.
[EX A]: What does a frog use to interface?

[EX Q]: Eggs are often laid by birds in lifeless trees.
[EX A]: Eggs are often laid by birds in what?

[EX Q]: Bats use muscles in the chest to fly
[EX A]:
What do bats use to fly?