premise: A dark-skinned man in a straw hat playing guitar and a man in sunglasses listening and smiling. hypothesis: A man plays the trombone as spectators watch.
contradiction: Sentence 1 has a dark skinned man where Sentence 2 has just a man. Sentence 1 has the man playing guitar where Sentence 2 has the man playing trombone. Sentence 1 has a second man listening and smiling where Sentence 2 has spectators watching.