Premise: A woman in her underwear on a pillow while men look at her.

Hypothesis: Men are admiring a lingerie model.
it is not possible to tell

Premise: A band playing on stage for a crowd of people.

Hypothesis: A crowd of people are watching a band play on the stage.
yes

Premise: One boy in a striped shirt and one girl in a green shirt each riding on bicycles with training wheels.

Hypothesis: The bicycles are colored red and pink
it is not possible to tell

Premise: Several men are sitting by a river conversing with one another while a boat drifts by them.

Hypothesis: A group of men are discussing work by the river.
it is not possible to tell