CREATE TABLE "mixed_martial_arts_record" (
  "res" text,
  "record" text,
  "opponent" text,
  "method" text,
  "event" text,
  "round" real,
  "time" text,
  "location" text
);

Question: What is the total number of Round that has a Time of 6:04?
SQL: SELECT SUM("round") FROM "mixed_martial_arts_record" WHERE "time"='6:04';

Question: What Round has the Method of Submission (Single Wing Choke)?
SQL: SELECT "round" FROM "mixed_martial_arts_record" WHERE "method"='submission (single wing choke)';