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.

Question: Riding a two wheeled human powered vehicle is good for the environment because? Answer: it runs without fuel.
riding a bike does not cause pollution

Question: If a house is built using a raw material, it can be built with? Answer: branches.
if something is a raw material then that something comes directly from a source

Question: The main reason people want to use wind as an energy source is because there is? Answer: an everlasting supply.

wind is an inexhaustible resource