Complex sentence: Kumite-Ryu Jujitsu--dubbed the School of Survival by Grandmaster Davis--is a goshin (self-defense) style of Jujitsu characterized by fierce fighting and grappling.
Split into simpler sentences: Kumite-Ryu Jujitsu (Japanese: 組手流 柔術) is dubbed the "School of Survival" by Grandmaster Davis. It is a goshin (self-defense) style of Jujitsu characterized by fierce fighting and grappling.