premise: There is one man with light blue jeans on, and one with dark blue jeans on that are walking down the street. hypothesis: Two men are wearing jeans.
entailment: 'Two men' is a collective rephrasing of "There is one man with...and one with...", also wearing jeans is an alternative way of saying with 'jeans on'.|entailment: If one man is wearing light jeans and one man is wearing dark jeans, that means there are two men wearing jeans.|entailment: one man and one man makes two men.  jeans on is another way to say wearing jeans.