/------------------------------------------------------------------- Sphfalx0027s0012.1.p/19-43   (1)
      |                                                                               
      |------------------------------------------------------------------- Sphfalx0125s0011.1.p/19-43   (6)
      |                                                                               
      |                                                       /----------- Sphfalx0031s0081.1.p/93-117  (2)
      |                                                       |                       
      |                                            /----68----+----------- Sphfalx0008s0179.1.p/101-125 (5)
      |                                            |          |                       
      |                                 /----100---+          \----------- Sphfalx0027s0012.1.p/96-120  (10)
      |                                 |          |                                  
      +                                 |          \---------------------- Sphfalx0125s0011.1.p/102-126 (11)
      |                                 |                                             
      |                     /----100----+                     /----------- Sphfalx0125s0011.1.p/59-83   (4)
      |                     |           |                     |                       
      |                     |           |                     |----------- Sphfalx0008s0179.1.p/55-79   (7)
      |                     |           \----------99---------+                       
      |          /----68----+                                 |----------- Sphfalx0031s0081.1.p/55-79   (9)
      |          |          |                                 |                       
      |          |          |                                 \----------- Sphfalx0027s0012.1.p/58-82   (12)
      \----95----+          |                                                         
                 |          \--------------------------------------------- Sphfalx0031s0081.1.p/16-40   (3)
                 |                                                                    
                 \-------------------------------------------------------- Sphfalx0008s0179.1.p/15-39   (8)