Premise: A man reads a book at the corner of a building and you can see the photographer's shadow in the foreground.

Hypothesis: The man is reading Harry Potter.
it is not possible to tell

Premise: Two black dogs are swimming in a pool.

Hypothesis: Dogs swim in a pool.
yes

Premise: A woman in a green shirt reads a Dr. Seuss book to three children.

Hypothesis: the woman is reading
yes

Premise: This man is doing a stunt on a skateboard outdoors.

Hypothesis: A skateboarder is sleeping on his couch.
no