If each sink has a rounded outer edge and back edge that fits parallel to a wall.
return sinks ;return outer edge  of #1 ;return #1 where  #2 is rounded ;return back edge  of #3 ;return wall ;return #3 where  #4 fits parallel to  #5 ;return number of  #1 ;return number of  #6 ;return if  #7 is equal to  #8
['select', 'project', 'comparative', 'project', 'select', 'filter', 'aggregate', 'aggregate', 'boolean']