Q: If "A skateboarder performs a trick." does that mean that "The skateboarder is outside."?
Options:
- yes
- it is not possible to tell
- no
A: Just because A skateboarder performs a trick doesn't mean he is outside.
The answer is it is not possible to tell.

QUESTION: Premise: "Punk rock teenager walks with a mean look on his face."
Hypothesis: "The happy teenager had a smile on his face."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: The teenager cannot have a smile on his face and a mean look on his face at the same time.
The answer is no.

[QUESTION] If "A boy on a motorbike dressed in red and black motocross gear is in midair in a jump." does that mean that "A boy goes over a jump."?
Options:
- yes
- it is not possible to tell
- no
A boy on a motorbike goes over a jump its look like that he is in the midair.
The answer is yes.

Q: Given the sentence "Two people lower themselves into a cave with long ropes." is it true that "Two people are going caving."?
A: Lower themselves into a cave does not necessarily mean going caving.
The answer is it is not possible to tell.

QUESTION: Premise: "Two people hanging on a rope over a cliff."
Hypothesis: "The two people hanging are best friends."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: People don't need to be best friends to hang on a rope together.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "A lone firefighter helps tame a large fire." that "One man figts a fire."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
One means lone and a firefighter is a man who fights a fire.
The answer is yes.