13 4 7 1
  1 1 0.626436
  1 2 0.0918136
  1 3 -0.807607
  2 3 -1.40597
  10 3 -0.461337
  2 4 -0.470911
  3 4 -0.37453
  3
  4
  1
  2
  0.
  0.