What is the sum of the capacities for Carrigh wind warm that has a size of 0.85 MW and more than 3 turbines?
CREATE TABLE "completed_onshore_wind_farms" (
  "wind_farm" text,
  "capacity_mw" real,
  "turbines" real,
  "turbine_vendor" text,
  "size_mw" text,
  "county" text
);
SELECT SUM("capacity_mw") FROM "completed_onshore_wind_farms" WHERE "size_mw"='0.85' AND "wind_farm"='carrigh' AND "turbines">3;