Premise & hypothesis.
A young performer stands atop a red ball at the circus.

A person on a ball falls off.
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
A group of people are riding on a tour bus and viewing something interesting out the window.

A group of people are riding on a bus.
++++++++++
true or not.
yes

Premise & hypothesis.
A teen is doing skateboard tricks in the night over a set of stairs.

A teen shows off some new tricks over a set of stairs.
++++++++++
true or not.
yes