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.

[EX Q]: Question: sunlight produces? Answer: solar radiation.
[EX A]: sunlight produces heat

[EX Q]: Question: Which of the following relies on vibrating matter to work? Answer: violas.
[EX A]: vibrating matter can produce sound

[EX Q]: Question: I would have a harder time sliding with my socks on? Answer: a shag runner.
[EX A]:
friction acts to counter the motion of two objects when their surfaces are touching