Student asked: Given the sentence "A little girl in a pink shirt is sitting on a park bench in fall." can we conclude that "The girl is sleeping in her bed."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Sitting and sleeping are mutually exclusive activities. The girl cannot both be on a park bench (outside) and in her bed (inside). The answer is no.

Student asked: Test for natural language inference.
Premise: "A black man is talking to another man while holding a red cup in the middle of a crowd."
Hypothesis: "Three ladies are cooking."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. A man cannot be talking to another man if the subject of the sentence are ladies cooking. The answer is no.

Student asked: Given the sentence "A boy and a man cross a river on an elephant." can we conclude that "The pair decide to raft across the river."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. The boy and man crossed the river on an elephant or a raft. The answer is no.

Student asked: Given the sentence "An old man in dress pants and a light brown jacket sitting on a green bench." is it true that "An old man in dress pants and jacket sitting on a bench."?
Teacher's response:
Let's think. An old man in dress pants and jacket sitting on a bench refers to an old man in light brown jacket sitting on a green bench. The answer is yes.