If at least one saxophone case has a burgundy velvet interior.
return saxophone cases ;return interior of  #1 ;return #1 where #2 is  burgundy ;return #1 where #2 is  velvet ;return #1 in  both  #3 and #4 ;return number of #5 ;return if  #6 is  at least one
['select', 'project', 'comparative', 'comparative', 'intersection', 'aggregate', 'boolean']