premise: Two African Americans are together and one is wearing a cowboy hat while playing the guitar while the other is standing with sunglasses on. hypothesis: If the one, with the sunglasses, romoved them, lazer beams come out of his eyes.
contradiction: One of the men is wearing a cowboy hat and playing the guitar in Sentence 1. In Sentence 2 they claim the second man has eyes where we have no proof of that in Sentence 1.