A man wearing a ball cap and a blue T-shirt rides a white horse down a dirt road through lush , green nature .
It is certain that a man is standing on a horse , riding it by balancing on its back .
It is impossible that a man is standing on a horse , riding it by balancing on its back .
It is certain that a man is standing on a horse , riding it by balancing on its back .
A man is standing on a horse , riding it by balancing on its back .