[QUESTION] Given the sentence "A lively city street at night." is it true that "People are drinking at a bar."?
Just because a city street is lively does not mean there is drinking at a bar.
The answer is it is not possible to tell.

Q: Test for natural language inference.
Premise: "A teenage boy grinds across a bar on his skateboard."
Hypothesis: "A boy is performing tricks on his skateboard for a competition."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: The boy doesn't have to be doing tricks or practicing for a competition.
The answer is it is not possible to tell.

QUESTION: Premise: "A man with an apron cooks husks of corn."
Hypothesis: "The man with the corn was wearing an apron."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: The man with an apron implies that he is wearing it.
The answer is yes.

[QUESTION] Given the sentence "One man wearing a black hoodie sweatshirt and another wearing a box over his head." is it true that "Some people are getting ready for the concert."?
We know what they are wearing and not that they are getting ready for a concert.
The answer is it is not possible to tell.

Q: Test for natural language inference.
Premise: "A man in rodeo gear stands in the middle of an arena as several onlookers watch from behind the fence."
Hypothesis: "A cowboy is running away."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: A man cannot be standing and running away at the same time.
The answer is no.

[QUESTION] Can we conclude from "A martial artist breaks a brick." that "A black belt breaks a brick."?
Options:
- yes
- no
- it is not possible to tell
There are many levels of martial arts other than black belt.
The answer is it is not possible to tell.