[QUESTION] If "A large crowd of people stand behind red and blue barricades." does that mean that "People are sitting down."?
Options:
- yes
- it is not possible to tell
- no
People can not stand at the same time they are sitting down.
The answer is no.

Q: Premise: "A man and a woman posing for a picture."
Hypothesis: "A couple is taking a shower."
Do we know that the hypothesis entailed by the premise?
A: The same couple cannot be taking a shower and posing for a picture.
The answer is no.

QUESTION: Test for natural language inference.
Premise: "A boy shows his muscle on his arm."
Hypothesis: "The boy is member of a gymnastics team."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: A boy shows his muscle on his arm does not indicate that he is member of a gymnastics team.
The answer is it is not possible to tell.

[QUESTION] Premise: "A woman runs beside a concrete wall."
Hypothesis: "She is grilling hamburgers at a birthday party."
Do we know that the hypothesis entailed by the premise?
A woman who runs beside a concrete wall can't be grilling hamburgers at a birthday party at the same instant.
The answer is no.

Q: Test for natural language inference.
Premise: "Six people stand and sit around and talk at a party."
Hypothesis: "Six people are socializing."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: When you sit around and talk it is also called socializing.
The answer is yes.

[QUESTION] Premise: "A young adult skateboards in public."
Hypothesis: "There is a young adult skating in a closed off park."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A closed off park would not be called a public area.
The answer is no.