Premise: A young boy skateboarding

Hypothesis: A boy is skateboarding while others watch.
it is not possible to tell

Premise: A man wearing a red life vest waves as he waterskiis.

Hypothesis: A man is waving at the camera.
yes

Premise: Bicyclist riding their bikes across a metal bridge.

Hypothesis: Bicyclists are riding bikes in a gym.
no

Premise: A woman in a pink sweater sitting next to a man in a white windbreaker in front of a mobile food van.

Hypothesis: The woman was watching tv
no