digraph compound {

"Magic Dust" -> "Toxin" [label="Enzyme    ",len=2];
"Toxin" [style=filled, fillcolor="0,1,0.9"];
"Predator" [style=filled, fillcolor="0.66,0.1,0.9"];
"Predator" -> "Toxin" [label="is killed by", len=2];

}