digraph seats_libinput
{
  rankdir="BT";
  node [
    shape="box";
  ]

  ctx1 [label="libinput context 1"; URL="\ref libinput"];
  ctx2 [label="libinput context 2"; URL="\ref libinput"];

  seat0 [ label="seat phys 0 logical A"];
  seat1 [ label="seat phys 0 logical B"];
  seat2 [ label="seat phys 1 logical C"];

  dev1 [label="device 'Foo'"];
  dev2 [label="device 'Bar'"];
  dev3 [label="device 'Spam'"];
  dev4 [label="device 'Egg'"];

  ctx1 -> dev1
  ctx1 -> dev2
  ctx1 -> dev3
  ctx2 -> dev4

  dev1 -> seat0
  dev2 -> seat0
  dev3 -> seat1
  dev4 -> seat2
}