premise: There is one man with light blue jeans on, and one with dark blue jeans on that are walking down the street. hypothesis: Two men are making pancakes in their swimtrunks.
contradiction: Either both men have on swimtrunks, or they have on jeans.|contradiction: One cannot wear   swimtrunks and jeans simultaneously.|contradiction: The men are wearing jeans not swimtrunks. They are walking, not making pancakes.