digraph new_model {
        size="10,20";

        node [shape=circle,style=filled,color="gold"]; D0
        node [shape=circle,style=filled,color="red"]; D1
        node [shape=circle,style=filled,color="pink"]; D2
        node [shape=circle,style=filled,color="blue"]; D8.2.1
        node [shape=circle,style=filled,color="blue"]; 
        node [shape=circle,style=filled,color="blue"]; 
        node [shape=circle,style=filled,color="blue"]; D8.4.67

        subgraph cluster_0 {
		style=filled;
		color=grey;
		node [shape=box,style=filled,color="gold"];Data_Space_Visibility
		label="\n TripAdi-Shatva: D0 D1 D2 D8.2.1,...D8.4.67 \n asiddhavat: D0 D2 \n Shatva, tuk: D0 D1 \n siddha: D0 D1 D2";
	}
}