notes/school/di-ma/uebung/06/06_3.dot

graph {
    rankdir=LR;
    node [ shape=circle ];
    {
        rank=same;
        0;
        3;
    }
    {
        rank = same;
        1;
        2;
    }
    {
        rank=same;
        4;
    }
    {
        rank=same;
        5;
    }
    0 -- 1
    0 -- 2
    1 -- 2
    0 -- 3
    3 -- 2
    1 -- 4
    2 -- 4
    4 -- 5
}