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: ecosystems use sunlight for growth. 
Question: What do ecosystems use sunlight for?

Output: growth.


Input: Consider Input: Fact: cats may compete for territory, water, food, or mates. 
Question: what may compete for territory, water, food, or mates?

Output: cats.


Input: Consider Input: Fact: Gravity pulls objects toward celestial bodies. 
Question: What does gravity pull objects closer to?


Output: celestial bodies.