no                                                                                                            
                                                                                                                                                                                                                                                                data?                                                                              
                                                                                                                                                                                                                                                                                                                                                   
                                                                                                                                                                                                                                                                                            yes                                                    
                                                                                                                                                                                                                                                                                                                                                   
                                         yes                                                                                                                                                                                                                                                                                                       
                                         new lines                                                                                                                                                                                                                                                                                                 
                                         break the arrow                                                                                                                                                                                          bad data?                                                                                      no
                                                                                                                                                                                                                                                                                                                                                   
                                                                                                                                                                                                                                                                                                                                                   
                                                                                                                                                                                                                                                                                                                                                   
                                                                                                                                                                                                                                                                                                                process