Q: Given the sentence "A couple having some alone time." is it true that "A couple is having a romantic dinner on a secluded beach."?
A: A couple having alone time does not necessarily imply that they are out at a romantic dinner.
The answer is it is not possible to tell.

QUESTION: Given the sentence "A singer with a guitar sings into a microphone on stage while the drummer sits behind him." is it true that "A singer with an accordion sings into a microphone on stage while the bassist sits in front of him."?

Let's solve it slowly: An accordion is not a guitar and a bassist is not a drummer.
The answer is no.

[QUESTION] Test for natural language inference.
Premise: "Two young girls dressed in colorful dresses eat cake at a party."
Hypothesis: "The teenage girls dressed only in blue ate cake at the party."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Colorful dresses suggests that they are in other colors as well as blue.
The answer is it is not possible to tell.

Q: Test for natural language inference.
Premise: "The child is looking at a mannequin in a store window."
Hypothesis: "A child is in her crib."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: A crib is located in a bedroom so the child cannot be looking at a mannequin in a store window.
The answer is no.

QUESTION: Test for natural language inference.
Premise: "Suv splashing muddy water in a forest."
Hypothesis: "Suv splashing muddy water on a tree."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Just because a SUV is splashing muddy water in a forest it doesn't mean that water landed on a tree.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "The man is carrying several cases while riding a skateboard." that "A man carrying cases is riding a skateboard."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
A man carrying cases riding a skateboard is rephrase of man carrying (several) cases while riding a skateboard.
The answer is yes.