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: The face of the sphinx has changed from? Answer: wearing away.
[EX A]: wind and rain cause erosion

[EX Q]: Question: Where would rocks be the smoothest? Answer: where water has flowed for years.
[EX A]: contact between rocks over long periods of time causes rocks to smooth

[EX Q]: Question: A lion is hunting antelope. The antelope are fast, faster than the lion expected. To eat today, the lion needs? Answer: to catch up to it.
[EX A]:
if an organism 's prey moves quickly then that organism may need to move quickly to catch its prey