Question:
Premise: A muzzled greyhound dog is running around a track.

Hypothesis: A dog is moving around.
Is the hypothesis true?

Answer:
yes

Question:
Premise: A dog is jumping into the water.

Hypothesis: The water is warm.
Is the hypothesis true?

Answer:
it is not possible to tell

Question:
Premise: a crowd of people assemble for a cycling event.

Hypothesis: A group of people gather to protest Lance Armstrong.
Is the hypothesis true?

Answer:
it is not possible to tell