[QUESTION] Given the sentence "A person in the sky connected to a fan." is it true that "A propeller keeping a man in the sky for 10 minutes."?
Not all persons are a man. A person connected to a fan doesn't imply in the sky for 10 minutes.
The answer is it is not possible to tell.

Q: Premise: "People are walking down the street in front of a white van."
Hypothesis: "A few people are walking down the street."
Do we know that the hypothesis entailed by the premise?
A: People are walking down the street is part of the sentence people are walking down the street in front of a white van.
The answer is yes.

QUESTION: If "The little boy is having a grand time at the water park." does that mean that "A boy is playing at the beach."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: One can be either at the water park or at the beach.
The answer is no.

[QUESTION] Can we conclude from "A man overlooking a city." that "The man is on the roof trying to look thru a window to see a naked person."?
Options:
- yes
- no
- it is not possible to tell
A man cannot be overlooking a city and looking thru a window simultaneously.
The answer is no.

Q: Given the sentence "On a natural stone bridge high over an evergreen valley." is it true that "A man jumps into the air."?
A: A man jumps into the air high over an evergreen valley.
The answer is yes.

[QUESTION] Given the sentence "The skateboarder is taking a jump." can we conclude that "The person is on a skateboard."?
Options:
- yes
- it is not possible to tell
- no
A person on a skateboard is a synonym for a skateboarder.
The answer is yes.