Student asked: Premise: "Woman walking in an evening street."
Based on this premise, can we conclude that the hypothesis "A woman is walking home from a night on the town." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Although she is walking it does not imply she is walking home from a night on the town. The answer is it is not possible to tell.

Student asked: Given the sentence "A man sitting on a huge rock to pose for a picture." is it true that "A man is sitting quietly."?
Teacher's response: Let's think. A man on a huge rock is not necessarily sitting quietly. The answer is it is not possible to tell.

Student asked: Premise: "A white guy with sunglasses is singing with a microphone."
Based on this premise, can we conclude that the hypothesis "A sad white guy with sunglasses is singing with a microphone." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. A guy singing with sunglasses singing does not mean the guy is sad. The answer is it is not possible to tell.

Student asked: Premise: "Four policemen or security officers are posing for a photo while two of them embrace."
Hypothesis: "The policemen and officers are off duty at a bar having a good time."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. Two of the policemen and security officers embrace and they usually would not do that. The answer is no.