Which Authority has a Decile smaller than 6, and an Area of opoutere?
CREATE TABLE "thames_coromandel_district" (
  "name" text,
  "years" text,
  "gender" text,
  "area" text,
  "authority" text,
  "decile" real,
  "roll" real
);
SELECT "authority" FROM "thames_coromandel_district" WHERE "decile"<6 AND "area"='opoutere';