@startuml digraph foo { subgraph { ''''''edge [constraint=false]; S_age_0 -> E_age_0 -> I_age_0 -> R_age_0 S_age_1 -> E_age_1 -> I_age_1 -> R_age_1 S_age_2 -> E_age_2 -> I_age_2 -> R_age_2 S_age_n -> E_age_n -> I_age_n -> R_age_n; } S_age_0 -> E_age_1 E_age_0 -> I_age_1; I_age_0 -> R_age_1; S_age_1 -> E_age_2; E_age_1 -> I_age_2; I_age_1 -> R_age_2; S_age_2 -> E_age_n; E_age_2 -> I_age_n; I_age_2 -> R_age_n; } @enduml Submit amiga aws-orange black-knight bluegray blueprint cerulean-outline cerulean crt-amber crt-green cyborg-outline cyborg hacker lightgray mars materia-outline materia metal mimeograph minty plain reddress-darkblue reddress-darkgreen reddress-darkorange reddress-darkred reddress-lightblue reddress-lightgreen reddress-lightorange reddress-lightred sandstone silver sketchy-outline sketchy spacelab spacelab-white superhero-outline superhero toy united vibrant       🎉 Discover the future PlantUML Web Editor! 🚀  PNG  SVG  ASCII Art