Consider the question. 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
 If the answer is 'it is not possible to tell'; explain the reasoning:
The youth does not have to be angry to be waiting at a checkout line.