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

[Q]: medicines have no effect on HIV
[A]: What medicines have no effect on HIV?

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

[Q]: a mouth is used for eating fish by some birds
[A]:
What is used for eating fish by birds?