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: Axons transmit brain impulses to other cells. 
Question: What transmits brain impulses to other cells?

Ex Output:
Axons.


Ex Input:
Fact: When seasons change, weather effects change. 
Question: What is changed along with seasons changing?

Ex Output:
weather effects.


Ex Input:
Fact: birch trees are wood used to produce heat. 
Question: Birch trees are wood that are used to produce what?

Ex Output:

heat.