Main {
  {{ 
  static Cd_graph graph; 
  static ClassGraph cg; 
  static public void main(String args[]) throws Exception {
    cg = new ClassGraph(true, false);
    graph = Cd_graph.parse(System.in);
    graph.printSyntax();
  }
  }}
}

Cd_graph {
  {{
  void printSyntax() {
    List l = Main.cg.gather(this, "from Cd_graph to Syntax_vertex");
    for (ListIterator i=l.listIterator(); i.hasNext();) {
       System.out.println(" Syntax_vertex " + 
       ((Syntax_vertex) i.next()).get_string());
    }
  }
  }}
}