Student asked: Given the sentence "A tan dog is grappling another tan dog on gravel while someone stands narby." is it true that "Two dogs are in a doghouse."?
Teacher's response: Let's think. If the two dogs are grappling on gravel they are not in a doghouse. The answer is no.

Student asked: Given the sentence "A girl in a pink outfit and a blue cap laughs." can we conclude that "A girl laughs at a joke her friend told her."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. A girl in a pink outfit and a blue cap laughs does not necessary that she laughs at a joke her friend told her. The answer is it is not possible to tell.

Student asked: Premise: "A black dog runs on the beach."
Hypothesis: "A dog runs on the sand."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. A dog runs on a beach which is made of sand. The answer is yes.

Student asked: Premise: "A young boy in a red shirt climbs a playground rock wall."
Hypothesis: "A kid is practicing rock climbing at camp."
Do we know that the hypothesis entailed by the premise?
Teacher's response:
Let's think. In fact that a young boy in a red shirt climbs a playground rock wall does not necessarily climb at camp. The answer is it is not possible to tell.