Q: Premise: "A young man in a hard hat and safety vest sitting in a pickup while another man holds on in the passenger seat."
Hypothesis: "Nobdoy has a hat."
Do we know that the hypothesis entailed by the premise?
A: A young man has a hard hat so there is someone with a hat.
The answer is no.

QUESTION: Given the sentence "Dirt bikers traverse a series of jumps." is it true that "Some dirt bikers are falling off their bike."?

Let's solve it slowly: Just because Dirt bikers traverse a series of jumps does not mean they are falling off.
The answer is it is not possible to tell.

[QUESTION] Premise: "A back view of a man driving a tractor and signaling with two children as passengers at the back."
Hypothesis: "A man and his children drive to the store in an automobile."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
One cannot drive a tractor and an automobile at the same time.
The answer is no.

Q: Test for natural language inference.
Premise: "A man dressed like santa is riding in a carriage during a parade."
Hypothesis: "A man is dressed like santa to celebrate christmas."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: He could be dressed as Santa for other reasons than to celebrate Christmas.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "Two men are climbing a rock face at a waterfall." that "Two men are trying to compete against each other."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Just because we are climbing a rock face does not necessarily mean they compete.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "A little boy looking at his telescope in daytime." that "A boy is looking at the night time sky."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
A boy cannot look into a telescope in the daytime and look at the night sky.
The answer is no.