What is the earliest year that the building in sonnemannstraße/rückertstraße, ostend was built with a height larger than 185 meters?
CREATE TABLE "tallest_completed_buildings" (
  "name" text,
  "height_m" real,
  "height_ft" real,
  "location" text,
  "year_built" real
);
SELECT MIN("year_built") FROM "tallest_completed_buildings" WHERE "location"='sonnemannstraße/rückertstraße, ostend' AND "height_m">185;