Premise & hypothesis.
A man on a red bike popping a wheelie.

A man is riding a skateboard.
++++++++++
true or not.
no

Premise & hypothesis.
A girl in a striped shirt is drinking from a bottle, while a girl behind her talks on a cellphone.

A girl is drinking from a bottle while another talks on a cellphone.
++++++++++
true or not.
yes

Premise & hypothesis.
A man drives an old-fashioned red race car.

A man is playing paintball.
++++++++++
true or not.
no