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 process of isolating and making copies of a gene is now routine. 
Question: the process of isolating and making copies of a gene is now what?

Ex Output:
routine.


Ex Input:
Fact: Plants respond to green manures to disrupt plant disease. 
Question: Plants respond to what to disrupt plant disease?

Ex Output:
green manures.


Ex Input:
Fact: carbon may be stored in limestone for millions of years. 
Question: What may be stored in limestone for millions of years?

Ex Output:

carbon.