CREATE TABLE "table1_1888051_1" (
  "province" text,
  "capital" text,
  "area_km" text,
  "population" real,
  "density" real,
  "map_region" real
);

Question: when area (km²) is 1605.35, how many provinces are there?
SQL: SELECT COUNT("province") FROM "table1_1888051_1" WHERE "area_km"='1605.35';

Question: when province is monseñor nouel, what is the area (km²)?
SQL: SELECT "area_km" FROM "table1_1888051_1" WHERE "province"='Monseñor Nouel';

Question: How many capitals are there when area (km²) is 1111.14?
SQL: SELECT COUNT("capital") FROM "table1_1888051_1" WHERE "area_km"='1111.14';

Question: Nagua has the area (km²) of?
SQL: SELECT "area_km" FROM "table1_1888051_1" WHERE "capital"='Nagua';