In the tkkm o manawatu coed school in kelvin grove, what is the Authority listed/
CREATE TABLE "palmerston_north_city" (
  "name" text,
  "years" text,
  "gender" text,
  "area" text,
  "authority" text,
  "decile" real,
  "roll" text
);
SELECT "authority" FROM "palmerston_north_city" WHERE "gender"='coed' AND "area"='kelvin grove' AND "name"='tkkm o manawatu';