CREATE TABLE table_204_876 (id DECIMAL, "ecclesiastical jurisdictions" TEXT, "latin name" TEXT, "type" TEXT, "rite" TEXT, "ecclesiastical province" TEXT, "established" TEXT, "area  ( km2 ) " DECIMAL)

which diocese has a larger area , ondjiva or dundo ?
SELECT "ecclesiastical jurisdictions" FROM table_204_876 WHERE "ecclesiastical jurisdictions" IN ('ondjiva', 'dundo') ORDER BY "area (km2)" DESC LIMIT 1
SELECT "ecclesiastical jurisdictions" FROM "table_204_876" WHERE "ecclesiastical jurisdictions" IN ('ondjiva', 'dundo') ORDER BY "area (km2)" DESC NULLS LAST LIMIT 1