Premise: A person is playing music from a boom-box on top of a double deck bus.

Hypothesis: A person is listening to loud music
it is not possible to tell

Premise: Three men are hauling pink bags onto a boat, a fourth man sits on some wood on the river staring into the distance.

Hypothesis: Three men are working on the boat while the other is rafting.
it is not possible to tell

Premise: White bird with red eyes gets ready for a landing.

Hypothesis: A bird prepares to land.
yes

Premise: A woman sitting down on the subway eating a sandwich.

Hypothesis: A woman eats.
yes