Premise: "When walking down the street it is rare to encounter a pay phone."\nHypothesis: "A person is walking by a pay phone."\nDo we know that the hypothesis entailed by the premise?
Let's think step by step below.
it is not possible to tell
It is rare to encounter a pay phone does not imply a person is walking by a pay phone.

.

Therefore, the answer is it is not possible to tell