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: Fungi eat dead matter such as leaves. 
Question: What do fungi do to leaves?

Ex Output:
Eat them.


Ex Input:
Fact: Most animals without backbones have a nervous system. 
Question: Which type of system do most animals without backbones have?

Ex Output:
Nervous system.


Ex Input:
Fact: The gas produced by furnaces and other devices that burn fuel is colorless and odorless gas. 
Question: What characteristics does the gas produced by furnaces and other devices?

Ex Output:

its colorless and odorless.