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  cast iron stove uses what as fuel? Answer: timber.
answer:
a stove generates heat for cooking usually


question:
Question: An example of a fossil is a paw print in what? Answer: hard stones.
answer:
An example of a fossil is a paw print in rock


question:
Question: An example of an electromagnet is? Answer: recorders.
answer:

electromagnets can be powered by electricity