Question: Which retired kickboxer shares the record for world championship titles with Sem "Semmy" Schilt?
Sentence (from "Semmy Schilt"): Sem "Semmy" Schilt (] ; born 27 October 1973) is a Dutch former kickboxer, Ashihara karateka, mixed martial artist, one-time and four-time K-1 World Grand Prix Champion.
Relevant evidence: No