Denny asked: Premise: "A man who is wearing a maintenance vest is on a subway or train looking up at the closed doors."\nHypothesis: "A man who is wearing a vest is doing maintenance on a subway."\nDo we know that the hypothesis entailed by the premise?.
Le: OK, so how can I answer with some explanation?

User
Wearing a maintenance vest on the subway does not mean the man is doing maintenance at that time. He could be a maintenance man on his way home from work or on his way to work or on his way anywhere.
The answer: it is not possible to tell.
Assistant