Question:
Premise: A woman, talking on her cellphone, and a man are standing outside of a Sbarro pizza restaurant, next to the subway.

Hypothesis: Two people are standing next to a pizza place.
Is the hypothesis true?

Answer:
yes

Question:
Premise: a brown dog retrieves a stick in a rocky river

Hypothesis: The brown dog is bringing the stick back to its owner.
Is the hypothesis true?

Answer:
it is not possible to tell

Question:
Premise: A man who is wearing a maintenance vest is on a subway or train looking up at the closed doors.

Hypothesis: A man who is wearing a vest is on a subway.
Is the hypothesis true?

Answer:
yes