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: Genetic traits are passed down to offspring through chromosomes. 
Question: How are genetic traits passed down to offspring?

Ex Output:
Through chromosomes.


Ex Input:
Fact: individual nerve cells transmit nerve impulses to other cells. 
Question: What transmit nerve impulses to other cells?

Ex Output:
individual nerve cells.


Ex Input:
Fact: some mountains are caused by wind and rain. 
Question: What are some mountains caused by?

Ex Output:

Wind and rain.