Q: Given the sentence "A group of people are performing a play." is it true that "The group all go to school together."?
A: Just because the group go to school together doesn't mean they are performing a play.
The answer is it is not possible to tell.

Q: Premise: "A military man drives a boat."
Hypothesis: "A man in uniform riding in the back of a truck."
Do we know that the hypothesis entailed by the premise?
A: The man either drives a boat or is riding in a truck.
The answer is no.

Q: Premise: "A person walks along the beach and leaves footprints in the sand."
Hypothesis: "A person goes swimming in the ocean."
Do we know that the hypothesis entailed by the premise?
A: A person who walks along the beach cannot be swimming at the same time.
The answer is no.

Q: Given the sentence "A football player wearing black attempts to tackle a football player wearing white." is it true that "There are football players outdoors tackling an enemy."?
A:
The player does not have to an enemies to be tackled. Football doesnt have to be played outside.
The answer is it is not possible to tell.