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.

[Q]: Question: An example of biofuel could be? Answer: leaves.
[A]: biofuel is used to produce electricity by burning


[Q]: Question: As the earth glides from winter into spring you will witness? Answer: leaves growing.
[A]: temperature changing can cause phase changes


[Q]: Question: This is likely magnetic:? Answer: the innards of an iPhone.
[A]:
metal is sometimes magnetic