QUESTION: Given the sentence "A brown dog is chasing a ball on the grass." is it true that "The dog is running in a park."?

SOLUTION: Let's solve this gradually. A dog can run in other places than in a park.
Answer is it is not possible to tell.

QUESTION: Test for natural language inference.
Premise: "A historian and his friend digging in the mines to look for more fossils for study."
Hypothesis: "The historian and his friend are at a party."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

SOLUTION: Let's solve this gradually. One cannot be digging in mines and attend a party at the same time.
Answer is no.

QUESTION: Can we conclude from "A little dog is carrying a small twig in its mouth." that "A dog is carrying a very tiny stick."?
Options:
- yes
- no
- it is not possible to tell

SOLUTION: Let's solve this gradually. The dog could be carrying the stick under its neck or with its paw.
Answer is it is not possible to tell.

QUESTION: Premise: "A vendor in all pink and red clothing is preparing her wears while looking forward."
Hypothesis: "A person is selling things."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

SOLUTION:
Let's solve this gradually. Just because a vendor is preparing her wears does not mean she is selling her things.
Answer is it is not possible to tell.