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.

Ex Input:
Question: Dinosaur carcasses are a form of? Answer: fuel.

Ex Output:
oil is a source of energy

Ex Input:
Question: If a species of plant or animal ceases to exist on earth, either by natural causes or by activities of humans, the loss of the plant or animal? Answer: cannot be undone.

Ex Output:
if all members of a species cannot produce offspring then that species will likely become extinct

Ex Input:
Question: Who would be healthier? Answer: a sleeper.

Ex Output:
exercise has a positive impact on a human 's health