--- /dev/null
+digraph rmw_atomicity2 {
+margin=0;
+ranksep=.1;
+
+//N1 [label="A: v.store(1)", shape=none, group="a"];
+N1 [style=invis, shape=none];
+N2 [label="B: v.rmw()", shape=none];
+N3 [label="C: v.store(2)", shape=none];
+
+N1 -> N2 [color=invis];
+N1 -> N3 [color=invis, weight=100];
+N2 -> N3 [label="mo", color="#00aa00", style=dashed, penwidth=3];
+}