private String formatDOTNode(Node nn) {
		// return nn.nodeNum + "[shape=box] [color=" + nn.block.signature.color
		// + "] [label=\"" + nn.block.signature.name +
		// ":" + ((WeightedIdentity) (nn.block.signature)).weight + "\\n"
		// + nn.confidenceScore + "\"];\n";

		return nn.nodeNum + "[shape=box] [color=" + nn.block.signature.color
				+ "] [label=\"#" + nn.block.serialNum + "\\n"
				+ nn.confidenceScore + "\"];\n";
	}