premise: The man is wearing a red outfit and red mask stands in front of another man in urban camouflage. hypothesis: A man and a woman sitting beside each other, both wearing white.
contradiction: He is referring to two men, not a man and a woman. If one stands in front of the other, then they cannot be sitting beside each other. If one is wearing a red outfit and red mask and the other urban camouflage, then they cannot both be wearing white.