Find the name of the company that produces both furnitures with less than 6 components and furnitures with more than 10 components.
return companies ;return furniture of #1 ;return components of #2 ;return number of  #3 for each #2 ;return #1 where #4 is lower than 6 ;return #1 where #4 is higher than 10 ;return #1 in  both #5 and  #6 ;return name of #7
['select', 'project', 'project', 'group', 'comparative', 'comparative', 'intersection', 'project']