premise: A man in a black hat, standing on the street while playing an electric guitar and singing. hypothesis: The man in playing a bango inside a bar.
contradiction: You cannot be standing on the street and inside a bar at once.|contradiction: A man standing on the street can not be inside a bar while a bango can not be an electric guitar.|contradiction: A man cannot be playing an electric guitar on the street and playing a bango inside a bar at the same time.