/-------------------------------------------------------------------- Sof019176/78-143  (1)
      |                                                                               
      |-------------------------------------------------------------------- Sof017342/81-169  (2)
      |                                                                               
      |-------------------------------------------------------------------- Sof008175/1-285   (5)
      |                                                                               
      |-------------------------------------------------------------------- Sof000607/78-385  (6)
      +                                                                               
      |-------------------------------------------------------------------- Sof000116/2-150   (8)
      |                                                                               
      |                                            /----------------------- Sof002764/7-272   (3)
      |                      /---------100---------+                                  
      |                      |                     \----------------------- Sof009964/115-255 (4)
      \----------75----------+                                                        
                             \--------------------------------------------- Sof000116/155-210 (7)
                                                                                      

      /-------------------------------------------------------------------- Sof000607 (1)
      |                                                                               
      |-------------------------------------------------------------------- Sof008175 (3)
      |                                                                               
      |-------------------------------------------------------------------- Sof000116 (4)
      +                                                                               
      |                                            /----------------------- Sof019176 (2)
      |                      /----------78---------+                                  
      |                      |                     \----------------------- Sof017342 (7)
      \----------55----------+                                                        
                             |                     /----------------------- Sof009964 (5)
                             \---------100---------+                                  
                                                   \----------------------- Sof002764 (6)