code: def metaphone_processor(words):
      '''Double metaphone word processor.'''
      for word in words:
          for w in double_metaphone(word):
              if w:
                  w = w.strip()
                  if w:
                      yield f metaphone_processor(words):
      '''Double metaphone word processor.'''
      for word in words:
          for w in double_metaphone(word):
              if w:
                  w = w.strip()
                  if w:
                      yield w
docs: Double metaphone word processor.