digraph g {
node [shape = record,height=.1];
node0[label = " <f0> | - | d: 3 | <f1> "];

node1[label = " c: 2 | - | b: 1 | -"];
"node0":f0 -> "node1"
node2[label = " - | - | a: 0 | e: 4"];
"node0":f1 -> "node2"

}