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: Algae play significant roles as producers oceans. 
Question: In the ocean, algae play a significant role as what?

Output: producers.


Input: Consider Input: Fact: When you reuse products you reduce the resources but also protect the environment. 
Question: When you reuse products you reduce resources but also protect the?

Output: Environment.


Input: Consider Input: Fact: Breathing is regulated to keep blood acidity balanced. 
Question: What does breathing help balance acidity levels?


Output: blood.