premise: A woman dressed in a swimsuit is leaning against a pier while a man takes her picture. hypothesis: A man is taking a picture of a woman in a swimsuit leaning against a pier.
entailment: The man that is the secondary subject in the first sentence is the primary subject in the second sentence, while the women who is the primary subject in the first is the secondary in the second. The man is taking a picture and the woman is leaning in both sentences.