Premise & hypothesis.
Two young boys sit outside in the daylight hours wearing Winnie the Pooh and animal costumes.

At least one of these individuals is in a costume.
++++++++++
true or not.
yes

Premise & hypothesis.
construction workers are standing around the back of a dump truck.

They are upside down.
++++++++++
true or not.
no

Premise & hypothesis.
four men looking at a large sign.

The sign is advertising a business.
++++++++++
true or not.
it is not possible to tell