Q: Test for natural language inference.
Premise: "A man is playing a trombone while looking at a music stand on the left of the screen."
Hypothesis: "A man plays a trombone in the music concert."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: A man playing a trombone while looking at a music stand may or may not be at a concert.
The answer is it is not possible to tell.

QUESTION: Given the sentence "Smiling children are sitting on concrete slab displaying a small item in their hands." can we conclude that "A group of smiling children sitting together on a concrete slab holding small items in their hands outside."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Children must be holding small items in their hands in order to be displaying small items in their hands.
The answer is yes.

[QUESTION] Premise: "A boy in swim trunks does a backflip into the ocean while mountains show through the fog behind him."
Hypothesis: "A boy intends to do a cool trick in murky conditions."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Intends means the boy is thinking and hasn't done the trick yet.
The answer is it is not possible to tell.

Q: Premise: "A man and a woman in a blue dress are playing tennis."
Hypothesis: "A married couple share their love of tennis."
Do we know that the hypothesis entailed by the premise?
A: The man and woman may or may not be married and they don't necessarily share their love of tennis just because they are playing tennis.
The answer is it is not possible to tell.

QUESTION: Test for natural language inference.
Premise: "A man in a green sweatshirt and jeans pushes a bike with a cart attached to it down a street."
Hypothesis: "Nobody is using a cart."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Either nobody is pushing a cart or a man pushes a cart.
The answer is no.

QUESTION: Can we conclude from "A line of workers walking down stairs." that "Many people are on the stairs."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
Workers are people and if there is a line of them then there are many.
The answer is yes.