Q: Premise: "The man in the brown jacket is sitting on the ground by the jetty."
Hypothesis: "There are people on the ground."
Do we know that the hypothesis entailed by the premise?
A: A man is one in a group of people. If he is sitting by a jetty it's logical that there would be others there.
The answer is yes.

Q: Given the sentence "A girl looking at an animal she is holding in her hands." can we conclude that "A girl in a petting zoo."?
Options:
- yes
- it is not possible to tell
- no
A: Animals in a petting zoo are usually too large to be held.
The answer is it is not possible to tell.

Q: Premise: "A small boy swimming underwater."
Based on this premise, can we conclude that the hypothesis "The boy was a good diver." is true?
Options:
- yes
- it is not possible to tell
- no
A: A boy who is a good diver means he can swim well underwater.
The answer is yes.

Q: Given the sentence "Two dogs playing with a blue and green ball." can we conclude that "The zebras are playing with a ball."?
Options:
- yes
- it is not possible to tell
- no
A:
Either two dogs or two zebras are playing with a ball.
The answer is no.