Student asked: Premise: "This is a man with a goofy grin on his face."
Based on this premise, can we conclude that the hypothesis "There is a woman crying alone in her bed." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. The man wouldn't normally grin while someone was crying. The woman can't be alone if the man is there. The answer is no.

Student asked: Test for natural language inference.
Premise: "A man in pajamas is looking up at the ceiling."
Hypothesis: "The ceiling is being looked at by a man."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. Is being looked at is a rephrase of is looking up at. The answer is yes.

Student asked: Given the sentence "A woman walking on a street talking on the phone and she is carrying a mannequin." is it true that "The woman is in the middle of a conversation."?
Teacher's response: Let's think. On a street talking on the phone implies is in the middle of a conversation. The answer is yes.

Student asked: Premise: "A woman feeds cake to an elderly man at a wedding celebration."
Hypothesis: "A bridesmaid falls into the wedding cake."
Do we know that the hypothesis entailed by the premise?
Teacher's response:
Let's think. The woman feeding cake to the elderly man can't be falling into the wedding cake at the same time. The answer is no.