[QUESTION] If "A hiker in a red cap walking along a mountain path." does that mean that "Hiker looking for his lost dog."?
Options:
- yes
- it is not possible to tell
- no
A hiker going along a mountain path may not necessarily be looking for his lost dog.
The answer is it is not possible to tell.

Q: Given the sentence "A crowd gathers to watch two men performing a brazilian dance." can we conclude that "Nobody is dancing."?
Options:
- yes
- it is not possible to tell
- no
A: Two men are performing a dance and nobody is dancing are contradictions.
The answer is no.

QUESTION: Test for natural language inference.
Premise: "The swimmer is wearing goggles and looking into the distance."
Hypothesis: "Some people are about to race on dirtbikes."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: You cannot be a swimmer and about to race on dirtbikes.
The answer is no.

[QUESTION] Can we conclude from "A man in a wetsuit is suspended from a para-surfing harness whilst moving across the water on a board." that "The man will not go near the water."?
Options:
- yes
- no
- it is not possible to tell
A man cannot be para-surfing across the water and not go near water simultaneously.
The answer is no.

Q: Can we conclude from "A group of men are gathered around a concrete truck." that "A group of men are gathered around a conrete truck discussing last nights football game."?
Options:
- yes
- no
- it is not possible to tell
A: Just because some men are around a truck does not mean that they are discussing a football game.
The answer is it is not possible to tell.

[QUESTION] Premise: "A person on a dirt bike is riding up a hill while people watch on the side."
Based on this premise, can we conclude that the hypothesis "A woman is riding down a hill." is true?
Options:
- yes
- it is not possible to tell
- no
You cannot be riding up a hill while riding down a hill simultaneously.
The answer is no.