Student asked: Given the sentence "A woman sings to a group of passersby in the middle of a street." is it true that "A woman brawls with all challengers for the pocket change of strangers."?
Teacher's response: Let's think. If the woman brawls people then she would be fighting and not singing. The answer is no.

Student asked: Can we conclude from "Two cooks in a restaurant kitchen are watching the third cook make pizza dough." that "One cook is making pizza dough."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. The one cook is the same person as the third cook. The answer is yes.

Student asked: Given the sentence "A group of students dressed in sweatshirts and jackets head towards the right." can we conclude that "The people are sitting still at their desks."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. People that head towards the right cannot be sitting still at their desks. The answer is no.

Student asked: Premise: "People are skiing down a snow covered mountain."
Hypothesis: "People are skiing down a snow covered mountain while on vacation at a ski resort."
Do we know that the hypothesis entailed by the premise?
Teacher's response:
Let's think. Not all people skiing down a snow covered mountain are on vacation. The answer is it is not possible to tell.