code: def get_sentences(corpus):
  		'''
  		Parameters
  		----------
  		corpus, ParsedCorpus
  
  		Returns
  		-------
  		iter: [sentence1word1, ...], [sentence2word1, ...]
  		'''
  		assert isinstance(corpus, ParsedCorpus)
  		return itertools.chain(*[[[corpus._term_idx_store.getidxstrict(t.lower_) for t in sent
  		                           if not t.is_punct]
  		                          for sent in doc.sents]
  		                         for doc in corpus.get_parsed_docs()]f get_sentences(corpus):
  		'''
  		Parameters
  		----------
  		corpus, ParsedCorpus
  
  		Returns
  		-------
  		iter: [sentence1word1, ...], [sentence2word1, ...]
  		'''
  		assert isinstance(corpus, ParsedCorpus)
  		return itertools.chain(*[[[corpus._term_idx_store.getidxstrict(t.lower_) for t in sent
  		                           if not t.is_punct]
  		                          for sent in doc.sents]
  		                         for doc in corpus.get_parsed_docs()])
docs: Parameters
  		----------
  		corpus, ParsedCorpus
  
  		Returns
  		-------
  		iter: [sentence1word1, ...], [sentence2word1, ...]