Student asked: Premise: "He is smoking looking at the person."
Hypothesis: "He is sitting alone in a deserted room."
Do we know that the hypothesis entailed by the premise?
Teacher's response: Let's think. He can't be looking at a person if he's in a deserted room. The answer is no.

Student asked: Premise: "Several children in white shirts run their fingers through a railing."
Based on this premise, can we conclude that the hypothesis "Some kids wearing shirts touch a railing." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. The kids run their fingers through the railing so they must be touching the railing. The answer is yes.

Student asked: Given the sentence "A black dog is running across a grassy field by a tall fence." can we conclude that "There is a fence by the field."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. If there is a field by a tall fence then there is a fence by the field. The answer is yes.

Student asked: Can we conclude from "A man stands on a ladder doing some sort of work while he slowly gains public attention." that "The man is a firefighter."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response:
Let's think. A man stands on a ladder can be a construction worker and not necessarily firefighter. The answer is it is not possible to tell.