instruction:
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:
Question: A horse is outside alone in the middle of summer on a sunny day in a desert. The horse is getting wet. The wetness is coming from? Answer: sweat glands.
answer:
sweat is used for adjusting to hot temperatures by some animals


question:
Question: Heat from the sun, waves crashing down, and huge storms all wail on a large boulder at the shore. After a few hundred years, where the boulder stood is now? Answer: earth.
answer:
soil is formed by rocks eroding


question:
Question: If someone wants to use a natural gas in order to assist something necessary, they can? Answer: ignite it to warm their body.
answer:

natural gas is a source of heat by burning