[QUESTION] Premise: "A man in blue and black shorts and a green hat lying down in the sand."
Hypothesis: "The man has sand for hair."
Do we know that the hypothesis entailed by the premise?
Man laying down in the sand cannot have sand for hair.
The answer is no.

Q: Premise: "Two female volleyball players try to hit the ball."
Hypothesis: "Two female volleyball players fighting for the ball."
Do we know that the hypothesis entailed by the premise?
A: The players try to hit the ball which means they must be fighting for the ball.
The answer is yes.

QUESTION: If "An old man sits at a bus stop." does that mean that "An old man is waiting for a bus."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Waiting at a bus stop does not necessarily mean he is waiting for a bus.
The answer is it is not possible to tell.

[QUESTION] Can we conclude from "A young boy sits by the beach." that "A young boy sits by an older girl."?
Options:
- yes
- no
- it is not possible to tell
You can sit by the beach and not sit by an older girl.
The answer is it is not possible to tell.

Q: Given the sentence "A man with a knife in front of a cake." is it true that "A chef is holding a giant knife in front of a wedding cake."?
A: A chef is not always a man. Not all knives are giant. A cake does not imply a wedding.
The answer is it is not possible to tell.

[QUESTION] Premise: "A group of people ride a blue roller coaster on its way down from a turn."
Hypothesis: "Some people ride a roller coaster up from a turn."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
People are either down on a turn or up on a turn.
The answer is no.