Student asked: Premise: "A brown headed boy in a gray t-shirt is playing."
Based on this premise, can we conclude that the hypothesis "A boy is playing." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. A boy is a boy; playing is playing; tautologies are tautological. The answer is yes.


Student asked: Premise: "People are walking along a brick-paved street that is lined with shops under a cloudy sky."
Based on this premise, can we conclude that the hypothesis "A man disco dances." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. People implies more than one person while a man is singular and walking along a street does no occur while one disco dances. The answer is no.


Student asked: Can we conclude from "A girl in a karate outfit is talking to a man in a white shirt." that "A girl is talking to her karate teacher."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. A girl talking to a man is not necessarily the girl's karate teacher. The answer is it is not possible to tell.


Student asked: Premise: "The man is walking with a cane and carrying a bag."
Hypothesis: "The man is going somewhere."
Do we know that the hypothesis entailed by the premise?
Teacher's response:
Let's think. Walking with a cane and carrying a bag indicates going somewhere. The answer is yes.