Premise & hypothesis.
A young child looking at a toy railroad setup.

A little boy admires his Christmas present
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
Two little boys, from the waist up, in a martial arts match, one delivering a punch and the other blocking.

Two little boys are practicing martial arts.
++++++++++
true or not.
yes

Premise & hypothesis.
A man in a dark shirt stands in front of produce on a pink tablecloth.

The man is wearing a white shirt.
++++++++++
true or not.
no