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: incinerated mercury can cause the ph of soil to decrease. 
Question: what can cause the ph of soil to decrease?

Ex Output:
incinerated mercury.


Ex Input:
Fact: amoebae have motility. 
Question: what have motility?

Ex Output:
amoebae.


Ex Input:
Fact: epiphytes live everywhere on earth. 
Question: Where do epiphytes live?

Ex Output:

everywhere on earth.