yes or no for the melbourne with yes for gold coast, yes for adelaide, no for auckland?
CREATE TABLE "1997" (
  "sydney" text,
  "melbourne" text,
  "perth" text,
  "adelaide" text,
  "gold_coast" text,
  "auckland" text
);
SELECT "melbourne" FROM "1997" WHERE "gold_coast"='yes' AND "adelaide"='no' AND "auckland"='no';