Question: José Mário Sperry, a Brazilian heavyweight mixed martial artist, trained a retired Brazilian mixed martial artist who in submission wrestling, he holds an undefeated record of what?
Sentence (from "Mário Neto"): Mário Neto, known as Sukata (born 1974 in Brasília, Brazil) is a Brazilian mixed martial artist with a record of 12-5.
Relevant evidence: No