dot`
digraph R {
node [shape=record style=rounded]
layout=dot;
splines=true;
subgraph cluster_flow1 {
label="first flow" style="filled" color="lightgreen"
10
}
subgraph cluster_flow2 {
label="second flow" style="filled" color="azure"
1
2
t[shape=ellipse label="'First task'"];
10->1
1->t
1->2:n
}
subgraph cluster_flow3 {
label="third flow" style="filled" color="azure"
5
6
10->5
5->6:n
6->6
}
}
`