Premise: A shirtless teenage boy in long shorts drops in on a quarter pipe in a skate park.

Hypothesis: A teen boy falls off his skateboard.
it is not possible to tell

Premise: A group of young ballerinas are in a dance studio.

Hypothesis: A group of ballerinas are in a dance studio waiting on the instructor.
it is not possible to tell

Premise: A construction area closed off by fencing.

Hypothesis: A fence around a building.
yes

Premise: A man and daughter are doing crafts while the lady in charge looks over them.

Hypothesis: A mother and her daughter are alone doing crafts
no