What is the original name of the district with the current English name of South Bogor?
CREATE TABLE "districts_of_bogor_city" (
  "english_name" text,
  "original_name" text,
  "area_in_km" text,
  "population_at_2010_census" real,
  "number_of_settlements_and_villages" real
);
SELECT "original_name" FROM "districts_of_bogor_city" WHERE "english_name"='South Bogor';