Premise & hypothesis.
A man is pointing with his whole hand at a large projection of how folic acid helps neurulation.

A man points with his hand at a projection.
++++++++++
true or not.
yes

Premise & hypothesis.
A drag race car being worked on by 3 people on a track

Three people working on a drag race car are ballet dancers.
++++++++++
true or not.
no

Premise & hypothesis.
A woman and a boy on a unicycle.

They're riding a bike
++++++++++
true or not.
no