/-------------------------------------------------------------------- Sphfalx0005s0290.1.p/132-172 (1)
      |                                                                               
      |                                            /----------------------- Sphfalx0037s0095.1.p/842-880 (3)
      |                      /---------100---------+                                  
      |                      |                     \----------------------- Sphfalx0007s0206.1.p/724-762 (5)
      +----------100---------+                                                        
      |                      \--------------------------------------------- Sphfalx0005s0290.1.p/216-255 (4)
      |                                                                               
      |                                            /----------------------- Sphfalx0037s0095.1.p/757-796 (2)
      \---------------------91---------------------+                                  
                                                   \----------------------- Sphfalx0007s0206.1.p/640-678 (6)