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

[EX Q]: eagles  use pectorals to move their wings
[EX A]: What do eagles use to move wings?

[EX Q]: A wheeled automobile requires smooth surfaces.
[EX A]: What does a wheeled automobile require?

[EX Q]: pulleys can prevent humans from getting hurt
[EX A]:
What can prevent humans from getting hurt?