classDiagram
        direction LR
        class Student {
          -idCard : IdCard
        }
        class IdCard{
          -id : int
          -name : string
        }
        class Bike{
          -id : int
          -name : string
        }
        Student "1" --o "1" IdCard : carries
        Student "1" --o "1" Bike : rides
    

mindmap
  root
    A
    B
    C
    D
    E
    A2
    B2
    C2
    D2
    E2
    child1((Circle))
        grandchild 1
        grandchild 2
    child2(Round rectangle)
        grandchild 3
        grandchild 4
    child3[Square]
        grandchild 5
        ::icon(mdi mdi-fire)
        gc6((grand
child 6))
        ::icon(mdi mdi-fire)
          gc7((grand
grand
child 8))
        

      example-diagram