Premise: A girl demonstrating how to use a staff , in front of a class of martial artists and spectators .
Correct statement: There is a very good chance that the people are watching the martial art .
Incorrect statement: It is unlikely that the people are watching the martial art .
Correct statement: It is probably the case that the girl was teaching a lesson to a class .
Incorrect statement: It is highly unlikely that the girl was teaching a lesson to a class .
Correct statement: It is impossible that the girl is talking excitedly .
Incorrect statement: There is a better than even chance that the girl is talking excitedly .
Correct statement: It is highly unlikely that the girl has been going to the class for many years .
Incorrect statement: There is a very good chance that the girl has been going to the class for many years .
Correct statement: There is a better than even chance that a girl performs a complex move with her staff while people watch
Incorrect statement: It is highly unlikely that a girl performs a complex move with her staff while people watch