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: Blood is a fluid tissue that delivers oxygen and nutrients to other tissues. 
Question: What delivers oxygen and nutrients to other tissues?

Ex Output:
Blood.


Ex Input:
Fact: if graptolites are found in a place then that place used to be covered by water. 
Question: what are found in place to indicate a place used to be covered by water?

Ex Output:
graptolites.


Ex Input:
Fact: running requires fuel for chemical reactions which run the various systems of the body. 
Question: What requires fuel for chemical reactions which run the various systems of the body?

Ex Output:

running.