If at least one room has a patterned oriental-type rug on the floor.
return rooms ;return floor of #1 ;return rug ;return #3 that is patterned ;return #4 that is oriental-type ;return #1 where  #2 has #5 ;return number of  #6 ;return if  #7 is at least one
['select', 'project', 'select', 'filter', 'filter', 'comparative', 'aggregate', 'boolean']