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.

[EX Q]: Question: If a person recycles a wooden stool, they could buy that same material again as a? Answer: yellow pencil.
[EX A]: An example of recycling is using an object to make a new object

[EX Q]: Question: What will, for all intents and purposes, never run out? Answer: sunlight.
[EX A]: a renewable resource can be replaced

[EX Q]: Question: Someone stranded in the Sahara can potentially save their life with a? Answer: prickly plant's trunk.
[EX A]:
a cactus stem is used for storing water