QUESTION: Given the sentence "A college group of students playing a game of jenga." is it true that "A group of aliens is playing chess."?

Let's solve it slowly: College students are not aliens. They cannot play Jenga and chess at the same time.
The answer is no.

[QUESTION] If "A group of dancers on stage." does that mean that "The dancers are relaxing off stage."?
Options:
- yes
- it is not possible to tell
- no
The group of dancers cannot be on stage and off stage simultaneously.
The answer is no.

Q: Premise: "A man on the sea."
Hypothesis: "A man of the land."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A: The man is on the sea so he is not of land for sure.
The answer is no.

QUESTION: Given the sentence "A man in a red plaid shirt is riding a horse in rodeo show." is it true that "The man is horse riding to win a prize."?

Let's solve it slowly: The man in the red plaid shirt doesn't necessarily need to be riding for a prize just because he's on a horse in a rodeo show.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "A woman with a baby carriage walks towards a group of young men." is it true that "A woman is walking."?
A woman with a baby carriage that walks must be a woman that's walking.
The answer is yes.

Q: Premise: "A person is squatting with a yellow umbrella on a beach."
Hypothesis: "The person is not standing upright."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A:
A person can do squatting with an yellow umbrella only if he is not standing upright.
The answer is yes.