Q: Premise: "Woman tennis player wearing a light blue tennis outfit winds up to hit the tennis ball as the crowd watches."
Based on this premise, can we conclude that the hypothesis "A tennis player is about to serve the ball." is true?
Options:
- yes
- it is not possible to tell
- no
A: Winding up to hit the tennis ball does not infer that the woman was about to serve the ball.
The answer is it is not possible to tell.

QUESTION: Premise: "A man with an injured arm watches three policemen as one addresses the police van driver and two others walk away from the van."
Based on this premise, can we conclude that the hypothesis "The injured man saw the police do something." is true?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Injured man is a rephrase of man with an injured arm.
The answer is yes.

[QUESTION] Test for natural language inference.
Premise: "Four boys are surrounding a person sitting in a chair and splashing their head with pink paint."
Hypothesis: "The boys are shaving their heads."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Shaving your head and surrounding a person are not the same.
The answer is no.

Q: Can we conclude from "A mom trying to help her young child." that "A child alone outside."?
Options:
- yes
- no
- it is not possible to tell
A: A child is not alone if the mom is trying to help.
The answer is no.

QUESTION: Given the sentence "A young man in a black shirt stacks chairs." can we conclude that "A man is cleaning up after a concert."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: The màn stacking chairs does not imply he is cleaning after concert.
The answer is it is not possible to tell.

QUESTION: Test for natural language inference.
Premise: "A group of people stand in the sand looking out at the water."
Hypothesis: "A group of friends are at a beach party."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
A group of people may not necessarily be made up of friends.
The answer is it is not possible to tell.