Student asked: Given the sentence "A customs officer leaning on a bike rack outside of an office building." is it true that "A customs officer smokes a cigarette during a quick break."?
Teacher's response: Let's think. Leaning on a rack does not imply he smokes a cigarette. The answer is it is not possible to tell.

Student asked: Test for natural language inference.
Premise: "Two white dogs playing in the house near a computer monitor."
Hypothesis: "Some puppies are playing with a toy."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. Two dogs playing in the house doesn't imply playing with a toy and not all dogs are puppies. The answer is it is not possible to tell.

Student asked: Can we conclude from "A fireman is standing on top of a firetruck looking out into the distance." that "A fireman putting out a fire."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. Looking out into the distance does not imply putting out a fire. The answer is it is not possible to tell.

Student asked: Premise: "A wet white dog is splashing in the water with a stick in its mouth."
Hypothesis: "A white dog is running in a field of flowers."
Do we know that the hypothesis entailed by the premise?
Teacher's response:
Let's think. The dog can't be in a field while in the water. The answer is no.