QUESTION: Given the sentence "A shirtless man jumps in a sunny forest." is it true that "A man is not wearing a shirt because it got dirty."?

Let's solve it slowly: A man could remove his shirt for a reason other than it got dirty.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "A little girl is walking down a path lined with large trees."
Hypothesis: "The child was walking down the path to go to grandma's house."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A child walking does not automatically imply that they are going to grandma's house.
The answer is it is not possible to tell.

Q: If "A dragster is taking off and leaving a huge trail of smoke behind him." does that mean that "A dragster is competing in a race."?
Options:
- yes
- it is not possible to tell
- no
A: Just because the dragster is taking off doesn't mean it's competing in a race.
The answer is it is not possible to tell.

QUESTION: Premise: "A man covered in sand is looking inside of a metal bucket."
Hypothesis: "A woman covered in sand."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Man and woman are different. The woman actions are not explained.
The answer is no.

[QUESTION] Premise: "A man in jeans is playing with a ball while a woman in jeans stands nearby looking away."
Hypothesis: "A man and woman are watching a movie."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
They can't be playing with a ball and watching a movie at the same time.
The answer is no.

Q: Can we conclude from "A man with a hat plays an instrument on stage." that "A man is giving cooking lessons."?
Options:
- yes
- no
- it is not possible to tell
A:
One can not be playing an instrument and giving cooking lessons simultaneously.
The answer is no.