QUESTION: Given the sentence "A surfer surfing in the ocean." can we conclude that "The surfer is baried in sand."?
Options:
- yes
- it is not possible to tell
- no

SOLUTION: Let's solve this gradually. The first surfer is in the ocean but the other surfer is in the sand.
Answer is no.


QUESTION: Test for natural language inference.
Premise: "A man stands close to a crowd of people holding a card."
Hypothesis: "A man is dancing at a concert."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

SOLUTION: Let's solve this gradually. If a man stands close to a crowd he is not dancing at a concert.
Answer is no.


QUESTION: Given the sentence "Two men jump for the basketball." can we conclude that "Two men try out for the basketball team."?
Options:
- yes
- it is not possible to tell
- no

SOLUTION: Let's solve this gradually. To jump for a basketball does not imply to try out for the team.
Answer is it is not possible to tell.


QUESTION: Given the sentence "A man plays guitar in the dark." can we conclude that "A man strums his guitar."?
Options:
- yes
- it is not possible to tell
- no

SOLUTION:
Let's solve this gradually. A man playing his guitar must be one who strums it at some point.
Answer is yes.