Which Opponent has a Location of gold coast , australia, and a Method of submission (punches)?
CREATE TABLE "mixed_martial_arts_record" (
  "res" text,
  "record" text,
  "opponent" text,
  "method" text,
  "event" text,
  "round" real,
  "time" text,
  "location" text
);
SELECT "opponent" FROM "mixed_martial_arts_record" WHERE "location"='gold coast , australia' AND "method"='submission (punches)';