[QUESTION] Premise: "A dark-skinned man handing someone his phone."
Hypothesis: "The man does not own a phone."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A phone can't be his if he does not own it.
The answer is no.

Q: Given the sentence "Firefighter uses water to extinguish a car that was on fire." is it true that "A firefighter is doing his job."?
A: Firefighters extenguish fires for a living so they are doing their job.
The answer is yes.

QUESTION: Given the sentence "A man wearing a black shirt." can we conclude that "And a man in a hat are performing in a concert."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: The man with the hat is performing with a woman wearing a black shirt.
The answer is no.

[QUESTION] Test for natural language inference.
Premise: "A group of women are standing around an old fashioned ice cream truck."
Hypothesis: "The women are buying hamburgers."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
If the women are standing by an ice cream truck they are not buying hamburgers.
The answer is no.

Q: Premise: "A dog is running an obstacle course while a man in blue stands behind."
Hypothesis: "A man runs an obstacle course as a dog in blue stands behind."
Do we know that the hypothesis entailed by the premise?
A: A dog that runs while a man stands behind is not same as a man that runs and a dog stands behind.
The answer is no.

[QUESTION] Premise: "Two young couples posing for a picture in exercise clothing."
Based on this premise, can we conclude that the hypothesis "Four people on a hike pose for a picture." is true?
Options:
- yes
- it is not possible to tell
- no
Two young couple posing for a picture in exercise clothing doesn't necessarily mean they are on a hike.
The answer is it is not possible to tell.