Double orbit(BASS)
(A)
--------------------------------
--------------------------------
--------------------------------
0-------------------------------
--------------------------------
--------------------------------
--------------------------------
0-------------------------------
--------------------------------
--------------------------------
--------------------------------
0-----------------0-2-0-5-3-2---
--------------------------------
--------------------------------
--------------------------------
0-----2-----3-----5-------------
(B)
--------------------------------
--------------------------------
--------------------------------
0-----2-----3-----0-2-0-5-3-2---
--------------------------------
--------------------------------
--------------------------------
0-----2-----3-----5-------------
--------------------------------
--------------------------------
--------------------------------
0-----2-----3-----0-2-0-5-3-2---
--------------------------------
--------------------------------
--------------------------------
0-----2-----3-----5-------------
(C)
--------------------------------
--------------------------------
--------------------------------
--------------------------------
--------------------------------
--------------------------------
--------------------------------
--------------------------------
(D)
--------------------------------
--------------------------------
7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-
--------------------------------
--------------------------------
--------------------------------
7-7-7-7-7-7-7-7-0-----2---5-----
--------------------------------
--------------------------------
--------------------------------
7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-
--------------------------------
--------------------------------
--------------------------------
7-7-7-7-7-7-7-7-0-----2---------
--------------------------0-----
(E)
--------------------------------
--------------------------------
----------------5-5-5-5-5-5-5-5-
3-3-3-3-3-3-3-3-----------------
--------------------------------
--------------------------------
3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-3-
--------------------------------
(F)
--------------------------------
--------------------------------
5-5-5-5-5-5-5-5-5`-------------
--------------------------------
--------------------------------
--------------------------------
--------------------------------
0-------------------------------
--------------------------------
--------------------------------
--------------------------------
0-------------------------------
--------------------------------
--------------------------------
--------------------------------
0-----2-----3-----0-2-0-5-3-2---
--------------------------------
--------------------------------
--------------------------------
0-----2-----3-----5-------------
--------------------------------
--------------------------------
--------------------------------
0`-----------------------------
t
A-B-C-D-B-D-Ex4-F