docs: def find_regions(self, word):
          """
          Find regions R1 and R2.
          """
          length = len(word)
  
          for index, match in enumerate(re.finditer("[aeiouy][^aeiouy]", word)):
              if index == 0:
                  if match.end() < length:
                      self.r1 = match.end()
              if index == 1:
                  if match.end() < length:
                      self.r2 = match.end()
                  break