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: What's a good way to heat up inside after ice skating on a frozen lake? Answer: set fire to some natural gas.
answer:
natural gas is a source of heat by burning


question:
Question: The sun is responsible for? Answer: plants sprouting, blooming and wilting.
answer:
the sun is the source of energy for physical cycles on Earth


question:
Question: What's usually hot in temperature? Answer: the Sahara.
answer:

a desert environment is usually hot in temperature