What is the sum of the values for Melbourne, when Episode Number Production Number is 19 2-06, and when Sydney is less than 389,000?
CREATE TABLE "ratings" (
  "episode_number_production_number" text,
  "title" text,
  "sydney" real,
  "melbourne" real,
  "brisbane" real,
  "adelaide" real,
  "perth" real,
  "total" real,
  "weekly_rank" real,
  "nightly_rank" real
);
SELECT SUM("melbourne") FROM "ratings" WHERE "episode_number_production_number"='19 2-06' AND "sydney"<'389,000';