Evaluation error on PubMedQA dataset about lmflow HOT 3 CLOSED

elif args.dataset == "pubmedqa":
        # pattern = "Output: (yes|no|maybe)"
        # sttr = re.search(pattern, temp)
        # answer = sttr.group(0)[8:] if sttr is not None else "N/A"
        answer_map = {"a":"yes","b":"no","c":"maybe","A":"yes","B":"no","C":"maybe","N/A":"N/A"}
        pattern = "(answer|Answer|ANSWER|output|Output|OUTPUT|A): \(*(A|B|C|a|b|c)"
        sttr = re.search(pattern, pred)
        if sttr is not None:
            mid_answer = sttr.group(0)
            answer = mid_answer[-1].lower()
        else:
            pattern = "\(*(A|B|C|a|b|c)\)*(\.|\s)"
            sttr = re.search(pattern, pred)
            if sttr is not None:
                if '(' in sttr.group(0):
                    answer = sttr.group(0)[1].lower()
                else:
                    answer = sttr.group(0)[0].lower()
            else:
                answer = "N/A"
        return answer_map[answer]
    elif args.dataset == "medmcqa":
        # pattern = "Output: (A|B|C|D)."
        # sttr = re.search(pattern, temp)
        # answer = sttr.group(0)[8:-1].lower() if sttr is not None else "N/A"
        pattern = "(answer|Answer|ANSWER|output|Output|OUTPUT|A): \(*(A|B|C|D|a|b|c|d)"
        sttr = re.search(pattern, pred)
        if sttr is not None:
            mid_answer = sttr.group(0)
            answer = mid_answer[-1].lower()
        else:
            pattern = "\(*(A|B|C|D|a|b|c|d)\)*(\.|\s)"
            sttr = re.search(pattern, pred)
            if sttr is not None:
                if '(' in sttr.group(0):
                    answer = sttr.group(0)[1].lower()
                else:
                    answer = sttr.group(0)[0].lower()
            else:
                answer = "N/A"
        return answer

    elif args.dataset == "usmle":
        # pattern = "Output: (A|B|C|D)."
        # sttr = re.search(pattern, temp)
        # answer = sttr.group(0)[8:-1].lower() if sttr is not None else "N/A"
        pattern = "(Answer|Output|A): \(*(A|B|C|D|a|b|c|d)"
        sttr = re.search(pattern, pred)
        if sttr is not None:
            mid_answer = sttr.group(0)
            answer = mid_answer[-1].lower()
        else:
            pattern = "\(*(A|B|C|D|a|b|c|d)\)*(\.|\s)"
            sttr = re.search(pattern, pred)
            if sttr is not None:
                if '(' in sttr.group(0):
                    answer = sttr.group(0)[1].lower()
                else:
                    answer = sttr.group(0)[0].lower()
            else:
                answer = "N/A"
        return answer