Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.

[EX Q]: Fact: hiding can be used for avoiding early mortality. 
Question: hiding can be used for avoiding?
[EX A]: early mortality.

[EX Q]: Fact: parasites can cause harmful diseases. 
Question: certain diseases can be caused by what?
[EX A]: parasites.

[EX Q]: Fact: a stem is used to store h2o by some plants. 
Question: what do some plants use a stem to store?
[EX A]:
h2o.