Premise & hypothesis.
Two men are playing guitars and one man is singing into a microphone on a stage with the spotlight on them.

A band is performing on stage.
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
A classroom full of students participating in a hands on activity.

A class participating in an activity.
++++++++++
true or not.
yes

Premise & hypothesis.
A young man jumping his skateboard in a skate park with the ocean and a beach in the background.

a young man in a skate park near the beach is in a skateboarding contest
++++++++++
true or not.
it is not possible to tell