// file BreadthFirstSearch.java


public class BreadthFirstSearch {

    public static void BFS(AnimalGroup1 a) {
         FIFOQueue<AnimalGroup1> queue = 
              new FIFOQueue<AnimalGroup1>();
         queue.add(a);
         while (! queue.empty()) {
           AnimalGroup1 e = queue.pop();
           System.out.println(e.getLabel());
           for (int i =0; i < e.getNumChildren();  i++) {
             queue.add(e.getChildren()[i]);
            }
         }
     }     


    public static void main(String args[]) {
       AnimalGroup1 Mammal = AnimalGroup1.Taxonomy1();
       BFS(Mammal);
     }
}