Student asked: Given the sentence "A woman wearing sandals and a yellow shirt is carrying a tan bag." is it true that "A woman carries a tan bag full of gunpowder."?
Teacher's response: Let's think. The bag could contain anything or be empty. There is nothing to imply it is full of gunpowder. The answer is it is not possible to tell.

Student asked: Can we conclude from "Passing pedestrians look up at people on green metal balconies." that "The people on balconies are looking down at pedestrians."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. Passing pedestrians look up at people on green metal balconies does not indicate that The people on balconies are looking down at pedestrians. The answer is it is not possible to tell.

Student asked: Can we conclude from "Old man smoking cigarette on bench." that "A man smoking."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. One is smoking if they are smoking a cigarette regardless of location. The answer is yes.

Student asked: Can we conclude from "A person painting a railing." that "A person cleans the stairs."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response:
Let's think. A person cannot be painting a railing and cleans the stairs simultaneously. The answer is no.