QUESTION: Premise: "A man jumps high on his yellow skateboard over the concrete tile."
Hypothesis: "A man is having fun at the skate park."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Jumping with a skateboard on concrete tiles doesn't imply a skate park.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "Two brothers posing for a picture during the sunset." that "Brothers are posing for a picture at sunset."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Two brothers are brothers while posing at sunset must occur at sunset.
The answer is yes.

QUESTION: Test for natural language inference.
Premise: "A man prepares to blow glass."
Hypothesis: "A man is working with glass."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
Working with glass means a man prepares to blow the glass.
The answer is yes.