premise: A man is celebrating his victory while smiling and shooting champagne in the air with his teammate. hypothesis: A man is happily celebrating his victory while smiling and shooting champagne in the air.
entailment: Celebrating his victory implies happily celebrating his victory.|entailment: A man is happily celebrating means he is celebrating. We celebrate only when we are happy.|entailment: The man is celebrating  and shooting champagne with his teammate he is also doing so without his teammate.