QUESTION: Given the sentence "Man playing guitar on a sidewalk." is it true that "The man doesn't know how to play guitar."?

Let's solve it slowly: The man has to know how to play the guitar is his is playing.
The answer is no.

[QUESTION] Test for natural language inference.
Premise: "A group of firefighters carrying a hose along the fire line of a brush fire."
Hypothesis: "A group of people fighting a fire."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
The peoples are carrying a hose along the fire line of a brush fire.
The answer is yes.

Q: Test for natural language inference.
Premise: "Three young kids sitting by a beautiful view."
Hypothesis: "Two girls sits."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: Young kids sitting together by beautiful view but there is not girls.
The answer is no.

QUESTION: If "A man with his shirt over his head is standing on top of a beam with his arms pointed towards the sky." does that mean that "A man hasn't beed dressing himself very long."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: The presence of a shirt an posture of the body does not indicate how long a person has been dressing himself.
The answer is it is not possible to tell.

[QUESTION] Premise: "A man and a girl sit on the ground and eat."
Hypothesis: "A man and a girl sit and eat."
Do we know that the hypothesis entailed by the premise?
To sit on the ground and eat is the same as sit and eat.
The answer is yes.

Q: Given the sentence "This lady seems to be engraving something on te pottery." is it true that "The woman is trying to forge trademarks on pottery to make them seem like valuable pieces."?
A:
Engraving does not necessarily imply a forge of trademarks to make them seem like valuable pieces.
The answer is it is not possible to tell.