In this task, you are given a question and a corresponding answer. Your task is to generate a fact statement that is useful in answering the given question.

[Q]: Question: Where would a sand dune be out of the ordinary? Answer: Kansas.
[A]: sand dunes are made of sand

[Q]: Question: What body covering does the animal that clucks have? Answer: Feathers.
[A]: chickens cluck

[Q]: Question: Which is more accurate:? Answer: sharks use gills to swim underwater for longer than humans can.
[A]:
gills are used for breathing water by aquatic animals