[QUESTION] Given the sentence "A man is airborne behind his bike whilst holding onto the handlebars as he attempting a jumping stunt." is it true that "The man is on the ground."?
The man cannot be airborne and on the ground at the same time.
The answer is no.

Q: Premise: "There are numerous people sitting in gray chairs."
Hypothesis: "Lots of people sit in grey chairs while they watch butterflies."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A: Watching butterflies is a single activity that might be performed while sitting in chairs.
The answer is it is not possible to tell.

QUESTION: Given the sentence "Two women sitting in green chairs and a little boy in a red shirt throwing a sign." can we conclude that "A boy throws a sign at his mother and his aunt."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Two women sitting in green chairs and a little boy in a red shirt throwing a sign does not necessary that he throws a sign at his mother and his aunt.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "Dog chewing up ball while rolling in grass." is it true that "Dog is playing with a small green ball."?
A dog chewing isn't always playing and a ball isn't indicative of size or color.
The answer is it is not possible to tell.

Q: Premise: "Two guys sitting on a car and horse with potatoes in the back."
Hypothesis: "The males are sitting on the ground."
Do we know that the hypothesis entailed by the premise?
A: Males are either sitting on the ground or on a car.
The answer is no.

[QUESTION] Test for natural language inference.
Premise: "A man in a black tank top with his head leaning back and a rod in his mouth is about to light the rod on fire with the two lit fire sticks in his left hand."
Hypothesis: "The man is a performer."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
The man is a performer because he is doing tricks with a rod in his mouth on fire and in his hands.
The answer is yes.