code: def simplify_tags(iob):
      
      new_iob = []
      for tag in iob:
          tag_match = re.match("([A-Z_]+)-([A-Z_]+)", tag)
          if tag_match:
              prefix = tag_match.group(1)
              suffix = tag_match.group(2)
              if suffix == "GPE_LOC":
                  suffix = "LOC"
              elif suffix == "GPE_ORG":
                  suffix = "ORG"
              elif suffix != "PER" and suffix != "LOC" and suffix != "ORG":
                  suffix = "MISC"
              tag = prefix + "-" + suffix
          new_iob.append(tag)
      return new_iob
docs: Simplify tags obtained from the dataset in order to follow Wikipedia
      scheme (PER, LOC, ORG, MISC). 'PER', 'LOC' and 'ORG' keep their tags, while
      'GPE_LOC' is simplified to 'LOC', 'GPE_ORG' to 'ORG' and all remaining tags to
      'MISC'.