CREATE TABLE manufacturer (manufacturer_id DECIMAL, open_year DECIMAL, name TEXT, num_of_factories DECIMAL, num_of_shops DECIMAL)
CREATE TABLE furniture_manufacte (manufacturer_id DECIMAL, furniture_id DECIMAL, price_in_dollar DECIMAL)
CREATE TABLE furniture (furniture_id DECIMAL, name TEXT, num_of_component DECIMAL, market_rate DECIMAL)

Find the name of the company that produces both furnitures with less than 6 components and furnitures with more than 10 components.
SELECT t3.name FROM furniture AS t1 JOIN furniture_manufacte AS t2 ON t1.furniture_id = t2.furniture_id JOIN manufacturer AS t3 ON t2.manufacturer_id = t3.manufacturer_id WHERE t1.num_of_component < 6 INTERSECT SELECT t3.name FROM furniture AS t1 JOIN furniture_manufacte AS t2 ON t1.furniture_id = t2.furniture_id JOIN manufacturer AS t3 ON t2.manufacturer_id = t3.manufacturer_id WHERE t1.num_of_component > 10
SELECT "t3"."name" FROM "furniture" AS "t1" JOIN "furniture_manufacte" AS "t2" ON "t1"."furniture_id" = "t2"."furniture_id" JOIN "manufacturer" AS "t3" ON "t2"."manufacturer_id" = "t3"."manufacturer_id" WHERE "t1"."num_of_component" < 6 INTERSECT SELECT "t3"."name" FROM "furniture" AS "t1" JOIN "furniture_manufacte" AS "t2" ON "t1"."furniture_id" = "t2"."furniture_id" JOIN "manufacturer" AS "t3" ON "t2"."manufacturer_id" = "t3"."manufacturer_id" WHERE "t1"."num_of_component" > 10