public class Test {
    public static void main(String[] args) {
        BinarySearchTree<String> root = new BinarySearchTree<>("William");
        root.add("Diana");
        root.add("Charles");
        root.add("Frances");
        root.add("Edward");
        root.add("Elizabeth");
        root.add("Philip");

        System.out.println(root);
    
        for(String name : root) {
            System.out.print(name + " ");
        }
        System.out.println();
    }
}