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: a scale is used for measuring grams. 
Question: what is a scale used to measure?
Example Output: grams.

Example Input: Fact: In the puberty stage is a time of significant mental, emotional and social change. 
Question: What is a time of significant mental and emotional change?
Example Output: puberty.

Example Input: Fact: Steroid hormones are made of diverse hydrophobic molecules, such as phospholipids and cholesterol. 
Question: Steroid hormones are made of what kind of matter?
Example Output:
diverse hydrophobic molecules.