Premise & hypothesis.
A boy doing a skateboarding trick on a city sidewalk.

A boy is skateboarding.
++++++++++
true or not.
yes

Premise & hypothesis.
A man placing his hand inside the pot of a small tree as he squats behind a row of other small trees.

A man squats down next to trees
++++++++++
true or not.
yes

Premise & hypothesis.
An african american gets a haircut.

They are donating their hair to the make a wig for cancer society foundation
++++++++++
true or not.
it is not possible to tell