code: def stemming_processor(words):
      '''Porter Stemmer word processor'''
      stem = PorterStemmer().stem
      for word in words:
          word = stem(word, 0, len(word)-1)
          yield worf stemming_processor(words):
      '''Porter Stemmer word processor'''
      stem = PorterStemmer().stem
      for word in words:
          word = stem(word, 0, len(word)-1)
          yield word
docs: Porter Stemmer word processor