Premise & hypothesis.
A band singing for a crowd of people.

the group is performing
++++++++++
true or not.
yes

Premise & hypothesis.
A blond dog is catching a ball in its mouth in the snow.

The dog's favorite toy is his ball.
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
A solo snowboarder swooshes down a mountain leaving a cloud of powdery snow in his wake.

The snowboarder snowboarded with his friends.
++++++++++
true or not.
no