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: One type of electrical circuit that requires a switch could be? Answer: dimming table lights.
answer:
when a switch in a simple series circuit is closed , electricity will flow through the circuit


question:
Question: An early example of harnessing wind power would be? Answer: cloth on masts.
answer:
wind is a source of energy


question:
Question: Which is an electrical energy conductor? Answer: cobalt.
answer:

metal is an electrical energy conductor


