QUESTION: Given the sentence "A man on an exercise bike that is attached to a video screen." is it true that "A man is exercising on an exercise bike."?

Let's solve it slowly: The man is on an exercise bike so he must be exercising.
The answer is yes.

[QUESTION] Test for natural language inference.
Premise: "A parachuter is flying over the ocean with waves and mist in the background."
Hypothesis: "The dogs eat grass."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
There is either a parachuter flying or there is a dog eating.
The answer is no.

Q: Can we conclude from "A white man and a black woman standing behind food service areas are separated by disposable plates as they wear red aprons with their logo upon it." that "The man and woman are at a restaurant on their first date."?
Options:
- yes
- no
- it is not possible to tell
A: Working/standing behind food serve and having first date cannot be happening simultaneously.
The answer is no.

QUESTION: Premise: "A man and women walking talking a picture."
Based on this premise, can we conclude that the hypothesis "A picture of frida kahlo." is true?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: The picture does not have to be by Frida Kahlo. It could be a picture of or by anybody.
The answer is it is not possible to tell.

[QUESTION] Premise: "Three men climbing on each other wearing yellow and brown shirts."
Hypothesis: "The climbers have shirts but no pants."
Do we know that the hypothesis entailed by the premise?
The men cannot be climbing on each other if they have no pants.
The answer is no.

Q: Test for natural language inference.
Premise: "The brown dog who looks like a dingo looks out of the forest."
Hypothesis: "The dog is out of the forest."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A:
When the dog is out of the forest he is not looking out of the forest.
The answer is it is not possible to tell.