title: Python - difference between tagged_sents and tagged_words in NLTK corpora
body: <p>What's the difference between nltk tagged_sents and tagged_words?</p>
  
  <p>They both seems to be list with tuples (word, tag). And if you do type(), they are both</p>
  
  <pre><code>nltk.collections.LazySubsequence
  </code></pre>