In this task, you are given a question and a corresponding answer. Your task is to generate a fact statement that is useful in answering the given question.

Input: Consider Input: Question: What is a source of energy for animals? Answer: grains.

Output: food is a source of energy for animals


Input: Consider Input: Question: The outer shell of our planet is made of? Answer: sedimentary formations.

Output: Earth 's surface is made of rock


Input: Consider Input: Question: Acid rain could effect? Answer: a car's color.


Output: acid rain has a negative impact on water quality