Student asked: Test for natural language inference.
Premise: "A man in a nun costume has a cigarette in his mouth."
Hypothesis: "A person participates in a costume party."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. Wearing a costume does not necessarily imply that a person is at a costume party. The answer is it is not possible to tell.

Student asked: Test for natural language inference.
Premise: "A man is getting a shave in a barber shop."
Hypothesis: "The barber shop is closed for remodeling."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. The barber shop cant be open and closed at the same time. The answer is no.

Student asked: Premise: "A older man with a confused look."
Hypothesis: "An older man is lost in a strange city."
Do we know that the hypothesis entailed by the premise?
Teacher's response: Let's think. A man with a confused look does not imply the man is lost. The answer is it is not possible to tell.

Student asked: Premise: "A bald man walks amidst a group of pigeons."
Hypothesis: "A bald man walks past pigeons and sends them flying."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. Walking amidst of group of pigeons and passing the pigeons are different actions. The answer is it is not possible to tell.