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