QUESTION: Test for natural language inference.
Premise: "A gray dog is bouncing a soccer ball on his head in a grass field."
Hypothesis: "The dog's owner is teaching the dog tricks."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: The dog's owner may not be present. Maybe the dog already knows the trick and is not currently being trained.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "A young blond girl in a pink dress rides the carousal." is it true that "A boy is playing basketball."?
One sentence states a girl while the other states a boy is the subject.
The answer is no.

Q: Premise: "Two people are hiking on a rocky trail through the mountains."
Hypothesis: "While enjoying a trail through the mountains two friends come upon a rocky trail and call for help."
Do we know that the hypothesis entailed by the premise?
A: They might not be enjoying the trail. They could be strangers. No indication they need help.
The answer is it is not possible to tell.

QUESTION: Premise: "A man in a brown leather jacket plays guitar."
Hypothesis: "A woman in a brown leather jacket plays guitar."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: Man refers to a male and is opposite to woman which refers to a female.
The answer is no.

[QUESTION] Given the sentence "Men sitting around a man wearing yellow next to a firetruck." can we conclude that "Firemen are conducting training near their truck."?
Options:
- yes
- it is not possible to tell
- no
Not all men are firemen and being next to a firetruck does not imply conducting training.
The answer is it is not possible to tell.

Q: Given the sentence "A construction worker operates a cement mixing truck while talking on a cellphone." can we conclude that "Putting in a new sidewalk."?
Options:
- yes
- it is not possible to tell
- no
A:
A cement mixing truck could have been building a new bridge instead of sidewalk.
The answer is it is not possible to tell.