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: mitosis is how organisms grow and repair themselves. 
Question: What is how organisms grow and repair themselves?

Output: mitosis.


Input: Consider Input: Fact: scraping oneself on a contaminated object may cause death. 
Question: Scraping oneself on a contaminated object may cause?

Output: death.


Input: Consider Input: Fact: Earth's orbital motion around the sun is key to the leaves of many trees changing colors. 
Question: What factor is instrumental behind the change of leaf colors during the year?


Output: Earth orbiting the Sun.