"Event source 1" -> "Wait for\nan event\nto happen"
"Event source 2" -> "Wait for\nan event\nto happen"
- "Event source n" -> "Wait for\nan event\nto happen"
+ "Event source N" -> "Wait for\nan event\nto happen"
"Wait for\nan event\nto happen" -> "Handle an\nevent" [label="Something happened...\n", tailport="n", headport="n"]
"Handle an\nevent" -> "Wait for\nan event\nto happen" [tailport="s", headport="s"]