PlantUML 使用新语法引用其他活动图

Question

我想用新语法实现下面的活动图。

这是旧语法：

@startuml
partition 1st {
(*) --> "A"
--> "B"
--> "C"
--> "D"
--> "E"
}
partition 2nd {
E --> "G"
--> "H"
}
partition 3rd {
"A" --> "F"
"F" --> "D"
}
@enduml