title: Chunking with nltk
body: <p>How can I obtain all the chunk from a sentence given a pattern.
  Exemple</p>
  
  <pre><code>NP:{&lt;NN&gt;&lt;NN&gt;}
  </code></pre>
  
  <p>Sentence tagged:</p>
  
  <pre><code>[("money", "NN"), ("market", "NN") ("fund", "NN")]
  </code></pre>
  
  <p>If I parse I obtain</p>
  
  <pre><code>(S (NP money/NN market/NN) fund/NN)
  </code></pre>
  
  <p>I would like to have also the other alternative that is </p>
  
  <pre><code>(S money/NN (NP market/NN fund/NN))
  </code></pre>