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.

Input: Consider Input: Fact: some beetles have complex social behaviors. 
Question: what have complex social behaviors?

Output: beetles.


Input: Consider Input: Fact: Genes are a part of coiled structures made of DNA and proteins. 
Question: What are a part of coiled structures made of DNA and proteins?

Output: genes.


Input: Consider Input: Fact: Emitted light is used for seeing in the dark. 
Question: What is emitted light used for ?


Output: To see in the dark.