Premise & hypothesis.
A hotdog vendor looks sad.

A hotdog vendor is happy and laughing.
++++++++++
true or not.
no

Premise & hypothesis.
A man climbing a rock-face.

The man is driving a car.
++++++++++
true or not.
no

Premise & hypothesis.
Two dogs are leaping into a swimming pool trying to fetch the yellow toy that is floating in the water.

Animals jump into water.
++++++++++
true or not.
yes