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: rain can break down rocks into smaller pieces. 
Question: What can rain do to rocks?

Output: Break down.


Input: Consider Input: Fact: Chromosomes are units of information causing traits to be passed down to offspring. 
Question: Chromosomes are units of information causing traits to be what to offspring?

Output: passed down.


Input: Consider Input: Fact: Birth may be followed by a period of extended family. 
Question: The period after birth might be referred to as:?


Output: extended family.