A man dressed in martial arts clothing is breaking a piece of wood with his foot as other students watch .
It is probably the case that a man dressed in martial arts clothing shows the students how to break wood .
It is probably the case that a man dressed in martial arts clothing shows the students how to break wood .
It is improbable that a man dressed in martial arts clothing shows the students how to break wood .
A man dressed in martial arts clothing shows the students how to break wood .