premise: A man in a baseball cap and denim shorts stands in an old blacksmith shop, using tools to work metal on an anvil. hypothesis: A female in a bikini stands in front of a vegetable shop, waiting to buy some.
contradiction: A man is not a female.  Baseball cap and denim shorts is men's clothing bikini is for female.  a blacksmith shop do not sell vegetable.   Working metal is not same as buying something.