What are all the political types where area is 155.77?
CREATE TABLE "political" (
  "city_municipality" text,
  "type" text,
  "no_of_barangays" real,
  "population_2010" real,
  "area_km" text,
  "pop_density_per_km" real,
  "income_class" text,
  "zip_code" real
);
SELECT "type" FROM "political" WHERE "area_km"='155.77';