digraph parse {
        size="10,10";
	subgraph cluster{
		style=filled;
		color=pink;
		label = "Program";
	subgraph cluster_0 {
		style=filled;
		color=lightgrey;
		node [shape=oval,style=filled,color="gold"];"pratyAhAra sUtras";"gaNa pATa";"dhAtu pATa";"lingAnuSAsana";"uNAdi sUtra";


		label = "Data";
	}

	subgraph cluster_1 {
		style=filled;
		color=cornsilk;
		node [shape=oval,style=filled,color="green"];"sUtras";
		label = "Algorithm";
	}
	
	
	}
	
	
}