Student asked: Premise: "The man dressed liked an indian wearing feathers is standing in front of the microphone."
Based on this premise, can we conclude that the hypothesis "The man is singing karaoke." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. The man dressed is either standing in front of the microphone or singing karaoke. The answer is no.

Student asked: Given the sentence "Four people sitting on low cement ledge." is it true that "They are homeless."?
Teacher's response: Let's think. Sitting on a ledge does not imply that they are homeless. The answer is it is not possible to tell.

Student asked: Given the sentence "A man in a blue jacket walking a stony path through the woods." can we conclude that "A person is taking a walk."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Taking a walk implies it is leisurely. The person may be walking for other reasons. The answer is it is not possible to tell.

Student asked: Can we conclude from "A man speaking at a conference." that "The man is speaking."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response:
Let's think. If someone is speaking at a conference then they must actually be speaking. The answer is yes.