[QUESTION] Premise: "A brunette man is welding a stair rail."
Based on this premise, can we conclude that the hypothesis "A man is working on a stair rail." is true?
Options:
- yes
- it is not possible to tell
- no
A man can weld a stair rail without working on a stair rail.
The answer is it is not possible to tell.

Q: Premise: "Costumed revelers enjoy a cloudy day at the park."
Hypothesis: "None of the people are wearing a costume."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A: Costumed revelers are wearing costume so is not true that none of the people are wearing costume.
The answer is no.

QUESTION: Given the sentence "A rock climber admiring the beautiful scene of a snowcapped mountaintop." is it true that "A person is wearing equipment of some kind is looking around."?

Let's solve it slowly: Admiring the scene of snowcapped mountaintop implies person is wearing equipment to look around.
The answer is yes.

[QUESTION] Premise: "A woman in a black short-sleeved shirt smiles at the camera as she mixes a drink."
Hypothesis: "A bartender smiles and mixes a drink."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A woman mixing a drink does not mean she is a bartender.
The answer is it is not possible to tell.

Q: Can we conclude from "A person in a hang-glider." that "A man is preparing to glide."?
Options:
- yes
- no
- it is not possible to tell
A: Person in hang-glider does not imply he is preparing to glide.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "A blue car drives down a mostly dirt road."
Hypothesis: "A man is driving down a dirt road."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
There is no person with a named sex. There may or may not be a man there.
The answer is it is not possible to tell.