Premise: "A man on his cellphone stands near a white brick building."\nHypothesis: "The man is talking to his wife."\nDo we know that the hypothesis entailed by the premise?
Let’s work this out in a step by step way to be sure we have the right answer.
it is not possible to tell
The man may be talking to someone else and not to his wife.

.

Therefore, the answer is it is not possible to tell