Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.

[Q]: Fact: An automobile engine works by summing kinetic energy and potential energy. 
Question: What works by summing kinetic energy and potential energy?
[A]: an automobile engine.


[Q]: Fact: When an object is kicked then energy is transferred to the object. 
Question: Energy is transferred to an object when what happens?
[A]: object is kicked.


[Q]: Fact: lakes can contain little or no salt. 
Question: What can contain little to no salt?
[A]:
lakes.