strict digraph {

    A0 -> A1 -> A2 -> A3 -> A4;
    B0 -> B1 -> B2 -> B3;
    C0 -> C1 -> C2;
    D0 -> D1;
    E0;

    A0 -> B0 -> C0 -> D0 -> E0;
    A1 -> B1 -> C1 -> D1;
    A2 -> B2 -> C2;
    A3 -> B3;
    A4;
}