package main

import (
	"fmt"

	pov ".."
)

func main() {
	g := pov.New()
	g.AddNode("sibling")
	g.AddNode("x")
	g.AddArc("parent", "sibling")
	g.AddArc("parent", "x")
	fmt.Println("== Change Root to child-3 ==")
	g.Print("parent")
	n := g.ChangeRoot("parent", "x")
	fmt.Println(n.ArcList())
	g.Print("x")
}