Student asked: Given the sentence "A rock star holding a guitar with butterfly decorations in the background and singing at the top of her lungs." is it true that "Girl giving big concert."?
Teacher's response: Let's think. The rock star may not be giving a big concert but singing alone or at practice. The answer is it is not possible to tell.


Student asked: Given the sentence "Three caucasian children are looking out of a bared area with their mouths open." can we conclude that "Children are looking through the fence."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Not all fences are bar fence and not all bared areas are fenced in areas. The answer is it is not possible to tell.


Student asked: If "A man in a green shirt is covering himself in sponges." does that mean that "A man is performing a magic trick with sponges."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. A man covering himself in sponges is not necessarily performing a magic trick. The answer is it is not possible to tell.


Student asked: Given the sentence "A youth with long dirty blond-hair wearing a denim jacket and jeans looks at the conveyor belt of groceries while waiting at a checkout line." can we conclude that "The youth is angry."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. The youth does not have to be angry to be waiting at a checkout line. The answer is it is not possible to tell.