Q: Given the sentence "A man wearing a brown t-shirt is talking to a woman wearing a flowered tank top at an outdoor music concert." is it true that "The people in the picture have never been to any kind of concert."?
A: They couldn't have not been to a concert and be at a concert.
The answer is no.

QUESTION: Test for natural language inference.
Premise: "Two girls standing on grass face each other."
Hypothesis: "The girls are standing on their heads."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Two girls standing facing each other does not infer the girls are standing on their heads.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "A man wearing a black shirt and jeans."
Hypothesis: "Is walking down the street with his hands in his pockets."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A man is dancing down the street with his hands in the air.
The answer is no.

Q: Given the sentence "Two construction workers are working on a scaffold." can we conclude that "The two workers are doing construction work on a scaffold."?
Options:
- yes
- it is not possible to tell
- no
A: If worker are doing construction then it is implied that they are construction workers.
The answer is yes.

QUESTION: Test for natural language inference.
Premise: "Two individuals are fencing in a gymnasium while another person watches."
Hypothesis: "The opponents are wearing safety gear."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: The other person must not be an opponent they may not be wearing a safety gear.
The answer is it is not possible to tell.

QUESTION: Premise: "People staring up at the fair."
Hypothesis: "People are going to the fair."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
Staring up at does not imply the people are going to the fair.
The answer is it is not possible to tell.