Q: Given the sentence "A dog jumps to catch a toy." is it true that "The pit-bull is catching the ball."?
A: There are many dogs besides pit-bulls. Because a dog jumps to catch the ball does not mean the dog actually catches it.
The answer is it is not possible to tell.

QUESTION: Premise: "Several men in silver suits are riding bicycles across a street."
Based on this premise, can we conclude that the hypothesis "The men are part of a street entertainment group." is true?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Not all men in silver suits riding bicycles across a street are in street entertainment group.
The answer is it is not possible to tell.

[QUESTION] Premise: "A window washer is cleaning the bookstore windows."
Hypothesis: "There is a man cleaning windows."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Just because A window washer is cleaning the bookstore windows doesn't mean he is a man.
The answer is it is not possible to tell.

Q: Test for natural language inference.
Premise: "A woman is bending down and looking into a stream through a wooded and mossy forest."
Hypothesis: "The woman looks for a rock in the stream."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: The woman bending down and looking into a stream might not necessarily be looking for a rock.
The answer is it is not possible to tell.

QUESTION: Premise: "A baseball player throwing a pitch."
Hypothesis: "An athlete is practicing for a game."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: A baseball player doesn't have to be an athlete. A baseball player throwing a pitch need not be practicing for a game.
The answer is it is not possible to tell.

QUESTION: Premise: "Two people and a leashed cow at a home."
Hypothesis: "They live on a farm."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly:
Two people who have a leashed cow at a home does not imply they live on a farm.
The answer is it is not possible to tell.