*Vertices  12
  1 "a"     0.1020  0.3226
  2 "b"     0.2860  0.0876
  3 "c"     0.5322  0.2304
  4 "d"     0.3259  0.3917
  5 "e"     0.5543  0.4770
  6 "f"     0.1552  0.6406
  7 "g"     0.8293  0.3249
  8 "h"     0.4479  0.6866
  9 "i"     0.8204  0.8203
 10 "j"     0.4789  0.9055
 11 "k"     0.1175  0.9032
 12 "l"     0.7095  0.6475
*Arcs
  1  2
  2  1
  1  4
  1  6
  2  6
  3  2
  3  3
  3  7
  3  7
  5  3
  5  6
  5  8
  6 11
  8  4
 10  8
 12  5
 12  7
  8 12
 12  8
*Edges
  2  5
  3  4
  5  7
  6  8