QUESTION: Given the sentence "The lead singer of a band is wearing white glasses while standing in front of a microphone stand with a white boa wrapped around it." is it true that "The singer isn't wearing glasses."?

Let's solve it slowly: The singer cannot be wearing glasses and not wearing glasses at the same time.
The answer is no.

[QUESTION] Premise: "A girl and woman are posing while sitting on a carpeted staircase."
Hypothesis: "A girl and woman are running outdoors."
Do we know that the hypothesis entailed by the premise?
A woman and a girl can not both be sitting and running.
The answer is no.

Q: Premise: "A person approaches a escalator while holding a bag."
Hypothesis: "A person was walking down the hall holding a bag."
Do we know that the hypothesis entailed by the premise?
A: A person that approaches a escalator is not a person walking down the hall.
The answer is no.

QUESTION: Premise: "One woman watches while another woman and a child look on the computer."
Based on this premise, can we conclude that the hypothesis "A teacher watches as a mother and child work together on an assignment on the computer." is true?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Just because One woman watches while another woman and a child look on the computer does not mean it is a teacher watching a mother and child who are working on an assignment.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "A cute curly headed little girl sitting on a man's shoulders." is it true that "The girl is enjoying herself on his shoulders."?
A cute curly headed little girl is the girl enjoying herself by sitting on a man's shoulders.
The answer is yes.

Q: Test for natural language inference.
Premise: "A group of friends socializing at a barbecue."
Hypothesis: "People are at a barbecue."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A:
They are at a barbecue because they are socializing at a barbecue.
The answer is yes.