premise: A large poster of a shaggy buffalo hangs over the head of a man in a blue shirt holding a red bag. hypothesis: A brown haired guy is standing underneath a picture of a gorilla in the zoo.
contradiction: A man is very general were a brown haired guy is allot more specific.A large poster is very different than a picture which can be a photograph which is very different than a poster.  A buffalo is very different than a gorilla.