Which Area km 2 has an Official Name of stanley, and a Population larger than 1,817?
CREATE TABLE "parishes" (
  "official_name" text,
  "status" text,
  "area_km_2" real,
  "population" real,
  "census_ranking" text
);
SELECT MAX("area_km_2") FROM "parishes" WHERE "official_name"='stanley' AND "population">'1,817';