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.

Input: Consider Input: Question: A fan pushes air with? Answer: rotating flat surface.

Output: the vanes rotating in an electric fan causes air to move


Input: Consider Input: Question: O2 molecules stacked on top of each other create weight which is then tallied by a? Answer: barometer.

Output: a barometer is used to measure air pressure


Input: Consider Input: Question: A wolf would eat? Answer: an ibex.


Output: predators eat prey