/-------------------------------------------------------------------- 270395/26-50   (1)
      |                                                                               
      |-------------------------------------------------------------------- 72709/8-30     (5)
      |                                                                               
      +                                            /----------------------- 72709/47-71    (2)
      |                      /---------100---------+                                  
      |                      |                     \----------------------- 270395/65-89   (4)
      \----------89----------+                                                        
                             |                     /----------------------- 270395/103-127 (3)
                             \---------100---------+                                  
                                                   \----------------------- 72709/85-108   (6)