Premise & hypothesis.
A man smiles at a person sitting next to him at a table who has a fauxhawk haircut and is flipping through a book and wearing a black leather jacket.

Someone is looking through a book.
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
A man in a plaid shirt is selling products to customers.

A man is selling products
++++++++++
true or not.
yes

Premise & hypothesis.
A naked baby lying down with his eyes closed.

A baby is sitting up.
++++++++++
true or not.
no