In what former province was the area 694.9 kilometers squared?
CREATE TABLE "table1_16278894_1" (
  "code" real,
  "county" text,
  "former_province" text,
  "area_km_2" text,
  "population_census_2009" real,
  "capital" text
);
SELECT "former_province" FROM "table1_16278894_1" WHERE "area_km_2"='694.9';