Student asked: Premise: "A young black-haired girl smiles toward the camera while holding a large insect."
Based on this premise, can we conclude that the hypothesis "The girl is unaware of the camera." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. One cannot be unaware of the camera and smile toward the camera simultaneously. The answer is no.

Student asked: Given the sentence "A woman standing near a bike rack." is it true that "The woman feel from the sky and landed in a quicksand pit."?
Teacher's response: Let's think. She can not be standing and falling. She can either be near a rack or in a pit. The answer is no.

Student asked: Can we conclude from "A boy busy concentrating on using a power-drill." that "Boy using a power drill."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. A boy is using a power drill implies he is busy doing it. The answer is yes.

Student asked: Premise: "A group of men is eating pizza in a restaurant."
Hypothesis: "Men are walking in a park."
Do we know that the hypothesis entailed by the premise?
Teacher's response:
Let's think. They cannot be walking in a park and eating in a restaurant. The answer is no.