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: Puberty begins the last stage of life before adulthood. 
Question: The last stage of life before adulthood begins with?
Example Output: puberty.

Example Input: Fact: Condensation causes sun blocking and temperature drops. 
Question: What causes sun blocking and temperature drops?
Example Output: condensation.

Example Input: Fact: exposure to tobacco smoke causes tumors. 
Question: What causes lung tumors?
Example Output:
tobacco smoke.