Student asked: Given the sentence "A motorcycle cop monitors a crowd of people." is it true that "The crowd went crazy."?
Teacher's response: Let's think. One cannot go crazy and be monitored by a cop simultaneously. The answer is no.


Student asked: Given the sentence "A man vacuums as a small child watches nearby." can we conclude that "The man is vacuuming the carpet in the office."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. The man may not be vacuuming the carpet in the office. He could be vacuuming out his car or at home vacuuming hard floors with no carpet. The answer is it is not possible to tell.


Student asked: Premise: "A man in a white shirt and plaid shorts sits down."
Hypothesis: "The man is sitting."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. The man sits down and the man is sitting is the same thing. The answer is yes.


Student asked: Test for natural language inference.
Premise: "People dressed in yellow vests doing work."
Hypothesis: "An office outing for charity leads to everyone donning yellow vests and helping the homeless."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response:
Let's think. People can do work in yellow vests without being at an office outing for charity and without helping the homeless. Just because there are people dressed in yellow vests does not mean that everyone is wearing a yellow vest. The answer is it is not possible to tell.