Premise: A dog swims in the water.

Hypothesis: A cat swims in the water.
no

Premise: Three women wearing white gowns are dancing.

Hypothesis: Three women in colorful dresses are dancing.
no

Premise: A man in a red striped shirt talks in to a microphone.

Hypothesis: A man is presenting to a crowd of people.
it is not possible to tell

Premise: A man in blue shirt with a spatula is bending over to pick something up while grilling, as another man in red and black rain jacket leans on grill and watches.

Hypothesis: Two men are grilling lunch for themselves.
it is not possible to tell