Premise: A group of people protesting.

Hypothesis: A bunch of people are not happy and protesting.
yes

Premise: a woman in white plays a black guitar.

Hypothesis: A woman wearing white playing an electric guitar.
it is not possible to tell

Premise: Three men are standing outside on a snowy mountain.

Hypothesis: Three men are preparing to scale down the mountain.
it is not possible to tell

Premise: A black dog jumps into the water to get a Frisbee while a boat sits in the back.

Hypothesis: The cat fetches the ball
no