Which Hanya has an area of 19.3888?
CREATE TABLE "subdivisions" (
  "hanyu" text,
  "tongyong" text,
  "pe_h_e_j" text,
  "chinese" text,
  "area_km" real,
  "no_of_villages" real,
  "population_2010" real
);
SELECT "hanyu" FROM "subdivisions" WHERE "area_km"=19.3888;