Premise: A dog standing in shallow water on a red leash.

Hypothesis: A dog esacaped from his owner is standing in some water.
it is not possible to tell

Premise: A group of runners and walkers posing together for a picture.

Hypothesis: There is a group of runners and walkers.
yes

Premise: A woman dressed in all white and heels is walking in front of a wall with a mural on it.

Hypothesis: A woman in all black salsa dancing.
no

Premise: Two bicyclists with helmets on are riding past some empty country fields.

Hypothesis: Two men are racing on their bicycles.
it is not possible to tell