premise: This man dressed in white pants and blue shirt, is standing on a ledge in the snow. hypothesis: A man is standing on a large field of lava.
contradiction: A person cannot be standing both in the snow and by a large field of lava at the same time.|contradiction: If  a man is standing on a ledge in the snow the man is not standing in a large field of lava.|contradiction: The man cannot be standing on a ledge in the snow and standing on a large field of lava at the same time.