QUESTION: Given the sentence "Two teenage girls dressed like hippies walk and talk." is it true that "Two girls are sitting on the ground."?

Let's solve it slowly: The girls sitting on the ground contradict the two girls in first sentence who walk and talk.
The answer is no.

[QUESTION] Premise: "A man with a black hat is looking pensively out the window of public transportation."
Hypothesis: "A man is looking out of the window."
Do we know that the hypothesis entailed by the premise?
A man looking pensively can be looking out of the window.
The answer is yes.

Q: Test for natural language inference.
Premise: "A young man with brown hair playing a guitar."
Hypothesis: "The guitar player has a hand."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: Most guitar players do have a hand or hands but there is the possibility he does not and is playing the guitar another way.
The answer is it is not possible to tell.

QUESTION: Test for natural language inference.
Premise: "A young boy sleeps in his car seat."
Hypothesis: "A boy sleeps in the car seat."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: A young boy sleeps in his car seat is a synonym of a boy sleeps in the car seat.
The answer is yes.

[QUESTION] If "A man is getting some sun in a busy park." does that mean that "A man is huddling under an umbrella."?
Options:
- yes
- it is not possible to tell
- no
A person cannot be getting some sun and huddling under an umbrella.
The answer is no.

Q: If "Two men holding skateboards walk down a sidewalk." does that mean that "The two men are sitting on a park bench."?
Options:
- yes
- it is not possible to tell
- no
A:
Men can not walk down a sidewalk and be sitting on a park bench at the same time.
The answer is no.