Question:
Premise: A man plays his guitar on the beach.

Hypothesis: It is night time
Is the hypothesis true?

Answer:
it is not possible to tell

Question:
Premise: A black dog with a red collar retrieving a stick from deep water.

Hypothesis: A dog swims to get a stick.
Is the hypothesis true?

Answer:
yes

Question:
Premise: The snowboarder has used a ramp-shaped snow pile to hurl himself or herself into the air.

Hypothesis: A person is snowboarding.
Is the hypothesis true?

Answer:
yes