[QUESTION] Given the sentence "A man with long hair is playing a guitar." is it true that "A hippie plays a cover of a led zeppelin song at a concert."?
A man with long hair doesn't necessarily mean a hippie. The fact that a man with long hair is playing a guitar doesn't imply that he plays a cover of Led Zeppelin song at a concert.
The answer is it is not possible to tell.

Q: Given the sentence "A man holds up a large unfolded white piece of paper standing in front of an area decorated with balloons and other decorations as two children are nearby." is it true that "A man is taking a nap on the couch."?
A: He can't hold up a large unfolded white piece of paper and take a nap at the same time.
The answer is no.

QUESTION: Premise: "A jockey rides his brown horse as the horse gallops along the track."
Hypothesis: "The jockey is getting ready to race with the horse."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: A jockey rides his brown horse as the horse gallops along the track does not indicate that the jockey is getting ready to race with the horse.
The answer is it is not possible to tell.

[QUESTION] Premise: "Four people riding horses along beach."
Hypothesis: "The people are riding cows."
Do we know that the hypothesis entailed by the premise?
Four people cannot be riding horses and riding cows at the same time.
The answer is no.

Q: Test for natural language inference.
Premise: "Two girls are sitting in their home and one of them is sitting on a chair."
Hypothesis: "The other on the floor getting her hair done."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: The girls are trying to look good for the boys outside.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "A woman lying in the grass taking drinking from an upside down bottle." can we conclude that "A woman lying on a bench eating a hot dog."?
Options:
- yes
- it is not possible to tell
- no
A woman cannot lay in the grass and on a bench simultaneously.
The answer is no.