Which Census Ranking has a Population smaller than 879, and an Area km 2 larger than 537.62?
CREATE TABLE "parishes" (
  "official_name" text,
  "status" text,
  "area_km_2" real,
  "population" real,
  "census_ranking" text
);
SELECT "census_ranking" FROM "parishes" WHERE "population"<879 AND "area_km_2">537.62;