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: Trees grow growth-rings one time each year; so which of these is correct? Answer: a tree with nine rings is nine years old.

Ex Output:
a tree growing a tree-growth ring occurs once per year

Ex Input:
Question: Seed dispersal is when the seeds of a plant are moved to a new environment from where? Answer: parent flora.

Ex Output:
seed dispersal is when the seeds of a plant are moved from the plant to a new environment

Ex Input:
Question: Incinerating half a herd of cows means there will be? Answer: fewer cows.

Ex Output:
harming an animal species causes that animal 's population to decrease