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 Input:
Fact: the genetic code in mRNA is a gene that can be translated. 
Question: What is the genetic code in mRNA that can be translated?

Ex Output:
a gene.


Ex Input:
Fact: Heat falls from the equator to the poles. 
Question: What falls decreasingly on the earth from the equator to the poles?

Ex Output:
heat.


Ex Input:
Fact: Different organisms require different amounts of energy. 
Question: What is a requirement whose amount varies between organisms?

Ex Output:

energy.