SimpleAttribute String {}
SimpleAttribute Boolean {}
SimpleAttribute Float {}

Class Plot {
    title : String
    legend : Boolean
}

Class Dataset {
    legend : String
    color : String
    linestyle : String
}

Class Datapoint {
    x : Float
    y : Float
}

Class Axis {
    name : String
    unit : String
    lim_low? : Float
    lim_high? : Float
}

Class XAxis : Axis {}
Class YAxis : Axis {}

Association x (Plot, XAxis) {}
Association y (Plot, YAxis) {}
Association data (Plot, Dataset) {}
Association point (Dataset, Datapoint) {}