Premise & hypothesis.
A man riding a his skates on a sunny day.

A man rollerblading outside.
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
Two college football players about to face off.

Two players about to play soccer.
++++++++++
true or not.
no

Premise & hypothesis.
Two girls hang upside down at a park

Two girls are trying to act like bats at the park.
++++++++++
true or not.
it is not possible to tell