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: One function of the gallbladder is to reduce the acidity of food. 
Question: What is one function of the gallbladder?

Output: reduce acidity of food.


Input: Consider Input: Fact: Evergreens are vascular plants that produce seeds in cones. 
Question: What are vascular plants that produce seeds in the form of cones?

Output: evergreens.


Input: Consider Input: Fact: Chemical weathering causes iron to rust. 
Question: What causes iron to rust?


Output: Chemical weathering.