premise: A woman with red-hair in a tan shirt walking down the street. hypothesis: There is a woman in a tan shirt.
entailment: There is a woman in a tan shirt is a less descriptive reiteration of a woman with red-hair in a tan shirt walking down the street; it conveys the impression that there is a woman or women possibly, somewhere, in a tan shirt. A woman with red hair in a tan shirt walking down the street conveys the idea that such a woman in a tan shirt is HERE walking down the street.