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

[EX Q]: talons are used to catch mice by some predators
[EX A]: What are used to catch mice by some predators?

[EX Q]: bear teeth are important for absorbing nutrients
[EX A]: What are important for absorbing nutrients?

[EX Q]: Air pollution contains lung irritants.
[EX A]:
What does air pollution contain?