premise: Older man wearing dark blue clothing sweeping the ground and a person wearing a red coat and carrying a green bag entering the building. hypothesis: An old man is sitting at a cafe drinking coffee.
contradiction: One can't sweep the ground while sitting at a cafe.|contradiction: Old man does not need to be specifically wearing dark blue clothing. The old man can't be drinking his coffee and sweeping the ground simultaneously.|contradiction: The old man cannot be both sitting and sweeping.