premise: A large crowd watches as a couple tap dances together on a wooden floor. hypothesis: A man swings a golf club.
contradiction: A large crowd implies a multitude of individuals, whereas a couple refers to two individuals and a man refers to one. The acts of watching, tap dancing, and swinging are each distinct activities which likely do not occur simultaneously. Golf is an outdoor activity, so it is unlikely that one would swing a golf club where either (1) people are dancing or (2) there is a wooden floor (presumably indoors).