Premise & hypothesis.
A group of females running a marathon.

A group of ladies are riding bikes through the park.
++++++++++
true or not.
no

Premise & hypothesis.
A man wearing a helmet points at the camera.

A man is pointing at the bird.
++++++++++
true or not.
no

Premise & hypothesis.
A shirtless guy does a skateboarding trick off of a wooden box.

The guy is on a skateboard.
++++++++++
true or not.
yes