TASK DEFINITION: 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.
PROBLEM: Question: If you're stuck outside on a sunny day, the coolest place would be under a tree because they do what to the sunlight? Answer: block it out.

SOLUTION: large trees block sunlight from reaching the ground

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

SOLUTION: food is a source of energy for animals

PROBLEM: Question: A rock tumbler revolves to? Answer: smooth gemstones.

SOLUTION:
contact between rocks over long periods of time causes rocks to smooth