[QUESTION] Given the sentence "A small dog tries to catch a red ball." can we conclude that "A dog wants the ball so he can get a treat."?
Options:
- yes
- it is not possible to tell
- no
Dogs are not always rewarded with a treat if the catch a ball.
The answer is it is not possible to tell.

Q: Test for natural language inference.
Premise: "An elderly man in a red jacket shielding his face from the sun."
Hypothesis: "A old man is avoiding the sun."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: If the person is shielding his face from the sun then he is avoiding the sun.
The answer is yes.

QUESTION: Given the sentence "Four women and three men are standing in a row in front of a white building each holding books." can we conclude that "A group of people are waiting to get into the building."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Not all four women and three men are standing in a row in front of a white building each holding books are waiting to get into the building.
The answer is it is not possible to tell.

[QUESTION] Premise: "A man on the phone surrounded by stacks of books."
Hypothesis: "A man makes a phone call from inside a book store."
Do we know that the hypothesis entailed by the premise?
Stacks of books do not always mean he is in a book store.
The answer is it is not possible to tell.

Q: Given the sentence "A man at work." is it true that "Butchering a cow."?
A: A man butchers a cow so he can sell the meat.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "Workmen and a tractor are behind concrete barricades and chunks of broken concrete." can we conclude that "Workmen are a tractor are in a open-field."?
Options:
- yes
- it is not possible to tell
- no
The workmen can only either be in the open-field or behind the concrete.
The answer is no.