Student asked: Given the sentence "A tractor loaded with parts is moving across a barren area outside." can we conclude that "An empty tractor parked inside a garage."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. The tractor can't be both loaded an empty at the same time. The answer is no.

Student asked: Premise: "A young girl in a bathing suit and goggles with a cast on her lower arm is diving off a starter block into a swimming pool with lane lines."
Hypothesis: "A girl swimming in a lake."
Do we know that the hypothesis entailed by the premise?
Teacher's response: Let's think. The girl can't be in a swimming pool and a lake at the same time. The answer is no.

Student asked: Given the sentence "Two greyhounds race." is it true that "The greyhounds are sleeping."?
Teacher's response: Let's think. The greyhounds cannot race and be sleeping at the same time. The answer is no.

Student asked: Given the sentence "A man fishes near some white waves." can we conclude that "A person near water."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. The liquid for fishing that has waves may not be water. The answer is it is not possible to tell.