Question: Tim Tackett is a martial arts instructor who runs a non-profit group that is dedicated to preserving a hybrid philosophy of martial arts that was referred to by Bruce Lee as what? 
Sentence (from "Tim Tackett"): Tim Tackett is a martial arts instructor and author from Redlands, California who runs a non-profit group dedicated to preserving Bruce Lee's art of Jeet Kune Do.
Relevant evidence: Yes