Complex sentence: Roger Gracie is the founder and head instructor at The Roger Gracie Academy located in Kensington, London, England, United Kingdom, notable Black belt promotions Raymond Stevens (judoka), Nick Gregoriades & Kywan Gracie Behring.
Split into simpler sentences: Roger Gracie is the founder and head instructor at The Roger Gracie Academy located in Kensington, London, England. Notable Black belt promotions include Raymond Stevens (judoka), Nick Gregoriades & Kywan Gracie Behring.