Dot syntax for stores graph example

digraph G {

    subgraph NationalBrand {
        style=filled;
        color=lightgray;
        node [style=filled,color=lightblue];
        ng [label="National Brand"]
        ng -> Kiwi [label="Franchise", fontcolor=darkgreen] // edge ng -- Kiwi
        ng -> Meny [label="ownes", fontcolor=darkgreen] // edge ng -- Meny
        ng -> Joker [label="Franchise", fontcolor=darkgreen] // edge ng -- Joker
        ng -> Ultra [label="ownes", fontcolor=darkgreen] // edge ng -- Ultra
        Kiwi -> NordNorge;
        Kiwi -> SørNorge;
        NordNorge -> Store1
        NordNorge -> Store2
        Store1 -> Freezeer1
        Store1 -> Freezeer2
        SørNorge -> Store3
        SørNorge -> Store4
        Meny -> Store5
        Joker -> Store6
        Ultra -> Store7
        Ultra -> Store8
        label = "process #1";
    }

    subgraph InternationalBrand {
        style=filled;
        color=lightgray;
        node [style=filled,color=lightblue];
        l [label="International Brand"]
        l -> DE
        l -> ES
        l -> DK
        l -> NL
        l -> SE
        wg [label="West Germany"]
        DE -> wg
        wg -> Store14 [label="Owns", fontcolor=darkgreen] // edge wg -- Store14
        wg -> Store15 [label="Owns", fontcolor=darkgreen] // edge wg -- Store15
        nge [label="North Germany"]
        DE -> nge
        nge -> Store16 [label="Owns", fontcolor=darkgreen] // edge wg -- Store16
        DE -> Region1
        Region1 -> Region2
        Region2 -> Store20
        Region2 -> Store21
        Store20 -> Freezer3
        Store20 -> Freezer4
        DE -> Store17 [label="Franchise", fontcolor=darkgreen] // edge ng -- Kiwi

        label = "Lidl Organzing Stores";
    }

    start -> ng 
    start -> l  


    start [label="Orgnization of Stores",shape=Mdiamond];

}