Premise & hypothesis.
A janitor flashes a smile while he cleans a replica small building with a vacuum cleaner.

Janitor smiles while sleeping
++++++++++
true or not.
no

Premise & hypothesis.
A helmet-clad man rides a 4-wheeler through muddy waters.

A man is walking in the mud.
++++++++++
true or not.
no

Premise & hypothesis.
A woman serving food at a family reunion.

a woman is sleeping
++++++++++
true or not.
no