Premise & hypothesis.
A little black dog wearing a red collar is in the leaves with a blue ball.

A dog is playing with a toy.
++++++++++
true or not.
yes

Premise & hypothesis.
A young man with a white sweatshirt on rides his bike through a busy crowd.

a man is riding a bike
++++++++++
true or not.
yes

Premise & hypothesis.
Men build castle-like sculptures out of dark sand by the shore.

Men competing in a sand castle competition.
++++++++++
true or not.
it is not possible to tell