QUESTION: Premise: "A dark-haired man standing up singing and a man in a brown hat sitting playing guitar."
Hypothesis: "Two men are singing and playing guitar."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: Not all dark-haired man standing up singing and a man in a brown hat sitting playing guitar are singing.
The answer is it is not possible to tell.

[QUESTION] Premise: "The man falls out of the sidecar into a puddle during the race."
Hypothesis: "A man looses his balance turning a corner."
Do we know that the hypothesis entailed by the premise?
A man can fall out of a sidecar at other times than when he is turning a corner.
The answer is it is not possible to tell.

Q: If "A man in bright orange shorts is skateboarding along a course with cones as two people observe in the background." does that mean that "Man showing off for crowd."?
Options:
- yes
- it is not possible to tell
- no
A: It's not apparent he's showing off and two people is not much of a crowd.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "The boat is in the middle of the water." that "The boat is sinking in the water."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: The boat in the middle of the water is not necessarily sinking in the water.
The answer is it is not possible to tell.

[QUESTION] Can we conclude from "A group of people are dancing while wearing rollerskates." that "A cat is chasing a dog."?
Options:
- yes
- no
- it is not possible to tell
People dancing is not the same as a cat chasing a dog.
The answer is no.

Q: Premise: "Man with bowl cut and gray shirt photographed from behind on a subway."
Hypothesis: "A man rides to work."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A:
A man on a subway is not always on his way to work.
The answer is it is not possible to tell.