instruction:
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.
question:
Question: Which type of energy is the most environmentally friendly? Answer: Sunlight.
answer:
solar energy is a renewable resource


question:
Question: A mammal usually nurses its what? Answer: younglings.
answer:
a mammal usually nurses its offspring


question:
Question: What is a way to be born besides live birth? Answer: coming through a tough shell.
answer:

if an animal hatches from an egg then that animal is born