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.

Example Input: Fact: Gene flow occurs when individuals migrate. 
Question: Migration increases what?
Example Output: gene flow.

Example 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?
Example Output: passed down.

Example Input: Fact: Reflective glass is used for reflecting light. 
Question: Reflective glass is used for reflecting what?
Example Output:
light.