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

Ex Input:
Concealing themselves helps prey avoid being eaten

Ex Output:
What helps prey avoid being eaten?

Ex Input:
Predators use sharp recurved nails to catch prey.

Ex Output:
What do predators use to catch prey?

Ex Input:
Children require rest to function effectively in the classroom.

Ex Output:
In what classroom do children need rest?