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

Question: What is Method, when Location is "Tokyo , Japan", and when Event is "Rings: Millennium Combine 2"?
SQL: SELECT "method" FROM "mixed_martial_arts_record" WHERE "location"='tokyo , japan' AND "event"='rings: millennium combine 2';

Question: What is Method, when Opponent is "Chalid Arrab"?
SQL: SELECT "method" FROM "mixed_martial_arts_record" WHERE "opponent"='chalid arrab';

Question: What is the sum of Round, when Record is "19-25-5"?
SQL: SELECT SUM("round") FROM "mixed_martial_arts_record" WHERE "record"='19-25-5';