premise: One girl sips a soda while another looks on, standing on a street in front of a bunch of bicycles. hypothesis: A girl drinks a soda while sleeping.
contradiction: If a girl is sleeping, another cannot look on.|contradiction: girl can't be sleeping if she sips soda or looks on.|contradiction: One reference is to two girls, and the other is to only one girl. The girl can not be both sleeping and standing on a street.