digraph {
"NODE_23" [style="filled" fillcolor="red" label="task fence"]
subgraph cluster_section_1 {
 subgraph cluster_section_2 {
     color=black;
    style=dashed
    label="bar"
    "NODE_9"
    "NODE_5"
    "NODE_3"
} // end subgraph cluster_section_2
 subgraph cluster_section_5 {
     color=black;
    style=dashed
    label="bar"
    "NODE_19"
    "NODE_15"
    "NODE_13"
} // end subgraph cluster_section_5
     color=black;
    style=dashed
    label="foo"
} // end subgraph cluster_section_1
 "NODE_19" -> "NODE_23"
"NODE_3" -> "NODE_5"
"NODE_5" -> "NODE_9"
"NODE_15" -> "NODE_19"
"NODE_9" -> "NODE_13"
"NODE_13" -> "NODE_15"
"NODE_19" [style="filled" fillcolor="white" label="baz"]
"NODE_15" [style="filled" fillcolor="white" label="baz"]
"NODE_13" [style="filled" fillcolor="white" label="t1\nA(read)(0) \nB(rw)(0) "]
"NODE_9" [style="filled" fillcolor="white" label="baz"]
"NODE_5" [style="filled" fillcolor="white" label="baz"]
"NODE_3" [style="filled" fillcolor="white" label="t1\nA(read)(0) \nB(rw)(0) "]
}