boost_1_45_0/libs/graph/example/figs/edge-connectivity.dot

graph G {
  rankdir="LR"
  size="5,3"
  ratio="fill"
  node[shape="circle"]
  A B C D E F G H
  A -- B
  A -- C
  A -- D
  B -- C
  B -- D
  C -- D
  D -- E
  D -- H
  E -- F
  E -- G
  E -- H
  F -- G
  F -- H
  G -- H
}