Premise & hypothesis.
A group of people in various costumes.

A group of party goers on Halloween.
++++++++++
true or not.
it is not possible to tell

Premise & hypothesis.
a large group of dogs walking in a body of water.

A large group of dogs are swimming in deep water.
++++++++++
true or not.
no

Premise & hypothesis.
A man slumped on the ground under a building overhang.

A man is walking along the street.
++++++++++
true or not.
no