Q: Given the sentence "A man and a woman are seated holding musical instruments while another woman stands at a podium." is it true that "The people are about to play a concert."?
A: Just because there men and woman with instruments doesn't mean they about to play a concert.
The answer is it is not possible to tell.

QUESTION: Premise: "A woman in a pink sweater looks pensive next to a crowd of laughing women."
Based on this premise, can we conclude that the hypothesis "A woman in pink stands beside a crowd of women." is true?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Next to is the same as beside. Also the second sentence is less descriptive than the first.
The answer is yes.

[QUESTION] Test for natural language inference.
Premise: "A young football player standing on the sidelines looks towards the sky while holding crutches."
Hypothesis: "The football player hurt his ankle during the game."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
We don't know which body part the football player hurt; it may not have been the ankle.
The answer is it is not possible to tell.

Q: If "An old man cutting vegetables in the middle of a busy walkway." does that mean that "The man is using shears."?
Options:
- yes
- it is not possible to tell
- no
A: A man cutting vegetables does not have to be using shears.
The answer is it is not possible to tell.

QUESTION: Test for natural language inference.
Premise: "A man in a blue outfit works on a train."
Hypothesis: "A repairman is in the rail yard."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Not all men that work on a train is a repairman.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "A little boy is sitting outside a christian dior store playing a musical instrument." that "The boy sits outside and watches the birds."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
The boy is either playing a musical instrument or he watches the birds.
The answer is no.