Premise & hypothesis.
The dog walks on the high plank.

a dog walks across a plank
++++++++++
true or not.
yes

Premise & hypothesis.
A man in a leather jacket grins with his teeth showing.

The guy is getting examined by his doc.
++++++++++
true or not.
no

Premise & hypothesis.
A man, leaning against a concrete wall with his arms resting on top, looks over a balcony.

A man leaning against a wall with his arms at his sides.
++++++++++
true or not.
no