Alice 2
    Bob 3
        Dave 2
            Justin 0
            Kim 0
        Eve 3
            Lisa 0
            Mallory 0
            Nate 0
        Frank 3
            Owen 0
            Pat 0
            Quentin 0
    Carol 3
        Grace 4
            Rich 0
            Steve 0
            Trudy 0
            Ursula 0
        Heather 3
            Victor 0
            Will 0
            Xavier 0
        Isaac 2
            Yvonne 0
            Zoe 0
            