Premise & hypothesis.
A rollerblader skating inside a tube.

A rollerblader tries a daring trick.
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
A mall security guard holds a vulture puppet on his arm.

Mall guard entertains young children
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
Three boys play tag on the beach.

Three boys playing tag.
++++++++++
true or not.
yes