Connection table for GVN
  21  23  32
 N
 C
 C
 C
 C
 C
 C
CL
 C
 C
 C
 C
 C
 C
 C
 C
 C
 C
 N
 N
 C
   1   2
   2   3
   3   4
   3  11
   4   5
   4  10
   5   6
   6   7
   7   8
   7   9
   9  10
  11  12
  11  16
  12  13
  13  14
  14  15
  14  17
  15  16
  17  18
  17  21
  18  19
  19  20
  20  21
   3   4   5   6 180.0   5.0
  10   4   5   6   0.0   5.0
   3   4  10   9 180.0   5.0
   5   4  10   9   0.0   5.0
   4   5   6   7   0.0   5.0
   5   6   7   8 180.0   5.0
   5   6   7   9   0.0   5.0
   6   7   9  10   0.0   5.0
   8   7   9  10 180.0   5.0
   7   9  10   4   0.0   5.0
   3  11  12  13 180.0   5.0
  16  11  12  13   0.0   5.0
   3  11  16  15 180.0   5.0
  12  11  16  15   0.0   5.0
  11  12  13  14   0.0   5.0
  12  13  14  15   0.0   5.0
  12  13  14  17 180.0   5.0
  13  14  15  16   0.0   5.0
  17  14  15  16 180.0   5.0
  14  15  16  11   0.0   5.0
  14  17  18  19 180.0   5.0
  21  17  18  19   0.0   5.0
  14  17  21  20 180.0   5.0
  18  17  21  20   0.0   5.0
  17  18  19  20   0.0   5.0
  18  19  20  21   0.0   5.0
  19  20  21  17   0.0   5.0
   4   3   5  10   0.0   5.0
   7   6   8   9   0.0   5.0
  11   3  12  16   0.0   5.0
  14  13  15  17   0.0   5.0
  17  14  18  21   0.0   5.0