/------------------------------------------------------------------- GSVIVT01019180001/59-109 (1)
      |                                                                               
      |                                                       /----------- GSVIVT01010221001/17-64  (2)
      |                                                       |                       
      |                                            /----74----+----------- GSVIVT01037024001/21-64  (4)
      |                                            |          |                       
      |                                            |          \----------- GSVIVT01010218001/21-64  (15)
      |                                 /----74----+                                  
      |                                 |          |---------------------- GSVIVT01037034001/21-64  (5)
      |                                 |          |                                  
      |                                 |          \---------------------- GSVIVT01037031001/20-64  (12)
      |                                 |                                             
      |                     /-----99----+                     /----------- GSVIVT01037022001/18-63  (6)
      |                     |           |---------100---------+                       
      |                     |           |                     \----------- GSVIVT01037026001/17-63  (10)
      |          /----85----+           |                                             
      |          |          |           \--------------------------------- GSVIVT01021534001/15-56  (11)
      +          |          |                                                         
      |          |          \--------------------------------------------- GSVIVT01006592001/16-63  (17)
      |          |                                                                    
      |          |                                            /----------- GSVIVT01035477001/12-53  (7)
      |          |                                 /----99----+                       
      |----98----+                                 |          \----------- GSVIVT01007989001/9-53   (9)
      |          |                      /----52----+                                  
      |          |                      |          \---------------------- GSVIVT01014093001/9-58   (14)
      |          |          /-----59----+                                             
      |          |          |           \--------------------------------- GSVIVT01008980001/10-58  (18)
      |          |          |                                                         
      |          \----83----+--------------------------------------------- GSVIVT01031333001/11-50  (13)
      |                     |                                                         
      |                     \--------------------------------------------- GSVIVT01000175001/9-53   (16)
      |                                                                               
      |                                                       /----------- GSVIVT01019167001/9-59   (3)
      \---------------------------63--------------------------+                       
                                                              \----------- GSVIVT01002442001/33-83  (8)
                                                                                      

      /------------------------------------------------------------------- GSVIVT01019180001 (1)
      |                                                                               
      |                                                        /---------- GSVIVT01007989001 (2)
      |                                               /---100--+                      
      |                                               |        \---------- GSVIVT01035477001 (6)
      |                                     /----82---+                               
      |                                     |         \------------------- GSVIVT01000175001 (3)
      |                            /---83---+                                         
      |                            |        |                  /---------- GSVIVT01014093001 (11)
      |                            |        \--------95--------+                      
      |         /--------50--------+                           \---------- GSVIVT01008980001 (18)
      |         |                  |                                                  
      |         |                  \-------------------------------------- GSVIVT01031333001 (9)
      |         |                                                                     
      |         |                                     /------------------- GSVIVT01010218001 (4)
      |         |                                     |                               
      |         |                                     |------------------- GSVIVT01037024001 (5)
      +         |                                     |                               
      |         |                           /----97---+        /---------- GSVIVT01037034001 (8)
      |----99---+                           |         |---93---+                      
      |         |                           |         |        \---------- GSVIVT01037031001 (12)
      |         |                           |         |                               
      |         |                  /---67---+         \------------------- GSVIVT01010221001 (14)
      |         |                  |        |                                         
      |         |                  |        |                  /---------- GSVIVT01037026001 (10)
      |         |        /----59---+        \--------100-------+                      
      |         |        |         |                           \---------- GSVIVT01037022001 (15)
      |         |        |         |                                                  
      |         \---100--+         \-------------------------------------- GSVIVT01021534001 (16)
      |                  |                                                            
      |                  \------------------------------------------------ GSVIVT01006592001 (13)
      |                                                                               
      |                                                        /---------- GSVIVT01002442001 (7)
      \---------------------------98---------------------------+                      
                                                               \---------- GSVIVT01019167001 (17)