[QUESTION] Given the sentence "A guy grinding a rail in a park on his bike." is it true that "A man is trying to perfect a trick."?
A person can grind a rail without trying to perfect a trick.
The answer is it is not possible to tell.

Q: Premise: "Men examine meat at an outdoor meat market."
Based on this premise, can we conclude that the hypothesis "Men are looking to find meat for their dinner tonight." is true?
Options:
- yes
- it is not possible to tell
- no
A: Examining meat doesn't mean they want to find meat for their dinner tonight.
The answer is it is not possible to tell.

QUESTION: Given the sentence "An adult female and a girl sitting together in a brown chair with their feet up on an ottoman." is it true that "A mother and daughter sitting together watching tv."?

Let's solve it slowly: The female and a girl need not be mother and daughter. They need not be watching TV.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "A skilled gold worker works on his next piece of art."
Hypothesis: "A man steals a piece of gold work."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
If he works on the art then he would be busy and not able to steal the gold work.
The answer is no.

Q: Premise: "A nude man jumping on a well dressed man in a crowd."
Hypothesis: "The man does not like clothing."
Do we know that the hypothesis entailed by the premise?
A: A well dressed man does not imply the man does not like clothing.
The answer is it is not possible to tell.

[QUESTION] If "A man is holding a quiznos sub sign." does that mean that "The man is holding a sign for pizza hut."?
Options:
- yes
- it is not possible to tell
- no
One does not hold a quiznos sign and a pizza hut sign at the same time.
The answer is no.