digraph {
    node [fontsize = 8,shape = record]
    rankdir = LR;

    subgraph clusterB {
    label = "after topic mapping"
    node [fontsize = 8,shape = record]
    rankdir = LR;

    ap; bp; cp; dp; ep;
    ap [label = "A|topics: all-topics|included: cli,time,temp"]
    ap -> {bp; cp; dp; ep}

    bp [label = "B|topics:|included: cli"]
    cp [label = "C|topics:cli"]
    bp -> cp

    dp [label = "D|topics:temp"]
    ep [label = "E|topics:time"]
    }

    subgraph clusterA {
    label = "before topic mapping"
    node [fontsize = 8,shape = record]
    rankdir = LR;

    a; b; c; d; e;

    a [label = "A|topics: .*,all-topics"]
    a -> {b; c; d; e}

    b [label = "B|topics:(cli)"]
    c [label = "C|topics:cli"]
    b -> c

    d [label = "D|topics:temp"]
    e [label = "E|topics:time"]

    }

}