[Q] If "A little boy in a helmet is doing tricks on a skateboard." does that mean that "The boy is riding a scooter at the park."?
Options:
- yes
- it is not possible to tell
- no
[A] If a boy is riding a scooter he cannot also be doing tricks on a skate board.
The answer is no.

[Q] Premise: "A baby with pacifier playing on a toy horse outdoors."
Hypothesis: "The baby is getting a bath."
Do we know that the hypothesis entailed by the premise?
[A] The baby getting a bath contradicts with baby playing on a toy horse.
The answer is no.

[Q] Test for natural language inference.
Premise: "A dirt biker in the desert."
Hypothesis: "A man does a flip on his dirt bike in front of a crowd."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
[A] Not all biker in the desert does a flip in front of a crowd.
The answer is it is not possible to tell.