code: def _compare_suffix(self, other):
          
  
          # If suffix is omitted, assume a match
          if not self.suffix or not other.suffix:
              return True
  
          # Check if more than one unique suffix
          suffix_set = set(self.suffix_list + other.suffix_list)
          unique_suffixes = suffix_set & UNIQUE_SUFFIXES
          for key in EQUIVALENT_SUFFIXES:
              if key in unique_suffixes:
                  unique_suffixes.remove(key)
                  unique_suffixes.add(EQUIVALENT_SUFFIXES[key])
  
          return len(unique_suffixes) < 2
docs: Return false if suffixes are mutually exclusive