[QUESTION] Premise: "A group of people working on computers while wearing headsets."
Based on this premise, can we conclude that the hypothesis "A dozen people wear headphones while looking at their computers." is true?
Options:
- yes
- it is not possible to tell
- no
A dozen people implies a group of people and working and looking at computers wearing headsets are the same.
The answer is yes.

[QUESTION] Given the sentence "A young skateboarder jumping a trick in the air." can we conclude that "The skateboard does the trick to impress the judges."?
Options:
- yes
- it is not possible to tell
- no
The fact that the skateboarder is jumping a trick doesn't imply he's doing it to impress the judges.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "An older man is grilling hotdogs at a social function." is it true that "An older man is cooking hotdogs on a grill at a mardi gras party."?
A social function could be any party not just a mardi gras party.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "Children playing on a merry-go-round on a chilly day." can we conclude that "Children are playing on a merry go."?
Options:
- yes
- it is not possible to tell
- no
If they are on a merry go round they are on a merry go.
The answer is yes.