premise: Three people, one tall male in blue polo shirt and khaki shorts with tan shoes, brunette, heavy chested female in white summer blouse and denim shorts, second female wearing yellow rimmed sunglasses, yellow blouse and sandals, walking across a city street. hypothesis: The male is alone in his basement on the moon.
contradiction: There is either three people, or one man. They cannot be in the city street, and in a basement on the moon at the same time.