Student asked: Given the sentence "A red metal sculpture is surrounded by a large number of people." is it true that "No one is near the red sculpture."?
Teacher's response: Let's think. A sculpture cannot both have no one near it and also be surrounded by people. There either are are or not people around the sculpture. The answer is no.


Student asked: Given the sentence "Two girls are performing tricks on a trampoline." is it true that "The girls are friends."?
Teacher's response: Let's think. The girls could be competing in gymnastics or practicing. They do not have to be friends. The answer is it is not possible to tell.


Student asked: If "Person on stage singing and playing a guitar." does that mean that "Person on stage singing and playing a bass guitar."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Person on stage singing and playing a guitar is not necessarily playing a bass guitar. The answer is it is not possible to tell.


Student asked: Given the sentence "Drummers march down the street." can we conclude that "Drummers march down through the field."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. Either the drummers march down through the field or the street. The answer is no.