[Q] Premise: "A boy in a red vest and white karate outfit is sparring with a boy in a blue vest."
Hypothesis: "A boy is sparring with another boy at karate practice."
Do we know that the hypothesis entailed by the premise?
[A] A boy in a red vest sparring a boy in a blue vest is a boy sparring another boy.
The answer is yes.

[Q] Given the sentence "A young man jumps from one balcony to another." can we conclude that "Nobody is jumping."?
Options:
- yes
- it is not possible to tell
- no
[A] If nobody is jumping then there is no way for jumps to happen.
The answer is no.

[Q] Can we conclude from "A snowboarder leaves a trail of snow on the mountain." that "The snowboarder is doing a back flip."?
Options:
- yes
- no
- it is not possible to tell
[A] One either leaves a trail or is doing a back flip.
The answer is no.