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

[EX Q]: Some butterflies can use their colors as protection from predators.
[EX A]: Who can use their colors as protection against predators?

[EX Q]: Running requires food.
[EX A]: What does running require?

[EX Q]: Caves can be used to avoid leopards.
[EX A]:
Caves can be used to avoid what?