CREATE TABLE table_52270 ("Name" CLOB, "Years" CLOB, "Area" CLOB, "Authority" CLOB, "Decile" CLOB, "Roll" FLOAT)

What is the authority status of the school in Ellerslie with a decile of 7?
SELECT "Authority" FROM table_52270 WHERE "Area" = 'ellerslie' AND "Decile" = '7'
SELECT "Authority" FROM "table_52270" WHERE "Area" = 'ellerslie' AND "Decile" = '7'