digraph Rejected {
        rankdir=BT;

        // Events
        A[label="A: Alice ops Bob"];
        B[label="B: Alice deops Bob"];
        D[label="D: Bob sets topic"];
        E[label="E: Alice reops Bob"];

        // Prev events        
        B -> A;
        C -> B;
        D -> C;
        E -> C;
        F -> D;
        F -> E;

        // Auth Events

        B -> A [color=blue,style=bold];
        D -> A [color=blue,style=bold];
        E -> B [color=blue,style=bold];
}