Sophie: boost-examples-1.42.0-3.2mdv2010.1 i586

boost-examples-1.42.0-3.2mdv2010.1.i586.rpm

digraph TC {
 node[shape=circle];
  a
  b
  c
  d

  b -> c
  b -> d
  c -> b
  d -> c
  d -> a
}