@startuml
package "Risk Game" as risk {
    rectangle "Aggregate" as ag1 {
        class Game  {}
    }
    rectangle "Aggregate" as ag2 {
	class User {}
    }
	rectangle Aggregate {
		class Board {
		}
		class Continent  {
			name : String
			color : Color
		}
		class Country {
			name : String
		}
	}
}

Game *-right- Board
Game *-left- User
Board *- Continent
Continent *- Country
@enduml

