digraph pdo_entry_read {
    node [fontname="Helvetica"]
    edge [fontname="Helvetica", fontsize="12"]

    start
    start -> count [weight=5]

    count
    count -> action_next [weight=5]

    action_next [shape=point,label=""]
    action_next -> pdo_entry [label="Next entry", weight=5]
    action_next -> end [label="No more entries"]

    pdo_entry
    pdo_entry -> action_next

    end
}
