Table schema:
CREATE TABLE furniture_manufacte (Furniture_ID VARCHAR, manufacturer_id VARCHAR); CREATE TABLE manufacturer (name VARCHAR, manufacturer_id VARCHAR); CREATE TABLE furniture (Furniture_ID VARCHAR, num_of_component INTEGER)

Question: Find the name of the company that produces both furnitures with less than 6 components and furnitures with more than 10 components.
SQL: 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