Main function of smatch score calculation

def main(arguments):
    """
    Main function of smatch score calculation
    """
    global verbose
    global veryVerbose
    global iteration_num
    global single_score
    global pr_flag
    global match_triple_dict
    # set the iteration number
    # total iteration number = restart number + 1
    iteration_num = arguments.r + 1
    if arguments.ms:
        single_score = False
    if arguments.v:
        verbose = True
    if arguments.vv:
        veryVerbose = True
    if arguments.pr:
        pr_flag = True
    # significant digits to print out
    floatdisplay = "%%.%df" % arguments.significant
    for (precision, recall, best_f_score) in score_amr_pairs(args.f[0], args.f[1],
                                                             justinstance=arguments.justinstance,
                                                             justattribute=arguments.justattribute,
                                                             justrelation=arguments.justrelation):
        # print("Sentence", sent_num)
        if pr_flag:
            print("Precision: " + floatdisplay % precision)
            print("Recall: " + floatdisplay % recall)
        print("F-score: " + floatdisplay % best_f_score)
    args.f[0].close()
    args.f[1].close()