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


[Q]: Question: Humming birds may help the growth of? Answer: tulips.
[A]: An example of seed dispersal is animals eating seeds


[Q]: Question: Greenhouses are great for plants like? Answer: French beans.
[A]:
a greenhouse is used to protect plants from the cold