[QUESTION] Test for natural language inference.
Premise: "A group of young children pose for a photo while sitting on stools and making funny faces."
Hypothesis: "Children are taking a photo for their class."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Children can take photos for other reasons than for their class.
The answer is it is not possible to tell.

[QUESTION] Can we conclude from "A man and a woman stand at a street vendor's food stand." that "A man and his son are at the food stand."?
Options:
- yes
- no
- it is not possible to tell
Either a man and woman are at the stand or a man and his son are.
The answer is no.

[QUESTION] Can we conclude from "A woman is laughing while playing guitar." that "A woman is happy."?
Options:
- yes
- no
- it is not possible to tell
A woman is laughing so it follows that the woman is happy.
The answer is yes.

[QUESTION] Premise: "A man in a vest and tie is playing the guitar on a sidewalk."
Based on this premise, can we conclude that the hypothesis "A man playing a guitar." is true?
Options:
- yes
- it is not possible to tell
- no
Playing a guitar on a sidewalk is a way of playing a guitar.
The answer is yes.