CREATE TABLE table_72612 ("Episode #" CLOB, "Country" CLOB, "City" CLOB, "Martial Art/Style" CLOB, "Masters" CLOB, "Original Airdate" CLOB)

Which martial arts style was shown in Rio de Janeiro?
SELECT "Martial Art/Style" FROM table_72612 WHERE "City" = 'Rio de Janeiro'
SELECT "Martial Art/Style" FROM "table_72612" WHERE "City" = 'Rio de Janeiro'