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: Ozone depletion increases the risk of getting skin cancer. 
Question: What increases the risk of getting skin cancer?
Example Output: Ozone depletion.

Example Input: Fact: hormones control heart rate. 
Question: What do hormones control?
Example Output: Heart rate.

Example Input: Fact: Dolphins are therian mammals. 
Question: Which is a therian mammal?
Example Output:
dolphin.