| WHILE OCURV Expr CCURV Statement                                  {
                                                                        no_aux = new_node("While",NULL);add_child(no_aux,$3);
                                                                        if ( $5 != NULL)
                                                                        {

                                                                          if ($5->next_node != NULL)
                                                                          {
                                                                            aux = new_node("Block",NULL);
                                                                            add_child(aux,$5);
                                                                            add_sibiling($3,aux);
                                                                          }
                                                                          else
                                                                          {
                                                                            add_sibiling($3,$5);
                                                                          }
                                                                        }
                                                                        else
                                                                        {
                                                                          aux = new_node("Block",NULL);
                                                                          add_sibiling($3,aux);
                                                                        }
                                                                        $$ = no_aux;
                                                                      }