digraph G {
    margin=0;
    w [style=bold, label="want-01"];
    {rank=same;
    r [label="raven"];
    l [label="learn-01"];
    }
    s [label=<<FONT COLOR="red" FACE="helvetica">S</FONT>>]
    
    w->r [label="ARG0"];
    w->l [label="ARG1"];
    l->s [label="ARG0"];
}