CREATE TABLE table_71426 ("Name" TEXT, "Years" TEXT, "Gender" TEXT, "Area" TEXT, "Authority" TEXT, "Decile" FLOAT, "Roll" TEXT)

In the tkkm o manawatu coed school in kelvin grove, what is the Authority listed/
SELECT "Authority" FROM table_71426 WHERE "Gender" = 'coed' AND "Area" = 'kelvin grove' AND "Name" = 'tkkm o manawatu'
SELECT "Authority" FROM "table_71426" WHERE "Area" = 'kelvin grove' AND "Gender" = 'coed' AND "Name" = 'tkkm o manawatu'