Question: What former leader of the Gracie Humaitá school in Rio de Janeiro, Brazil, with the help of his father, demonstrated the Ashi-Hishigi in several medias?
Sentence (from "José Freitas Siqueira, Jr"): He received his DDS from Gama Filho University, Rio de Janeiro in 1989, and his endodontic certificate from Federal University of Rio de Janeiro in 1992.
Relevant evidence: No