Facts: - teacher: senzo tanaka - martial art: ninjitsu - birth date: 6 april 1956 - name: frank w. dux Based on these bullet points, write a short biography describing the life of frank dux .
Answer:
frank w. dux -lrb- pronounced '' '' dukes '' '' -rrb- is a martial artist and fight choreographer .dux established his own school of ninjutsu in 1975 , called '' dux ryu ninjutsu '' .an article about his purported exploits , which appeared in '' black belt magazine '' in 1980 , was the eventual inspiration for the 1988 film '' bloodsport '' starring jean-claude van damme .