title: How to override the POS tags assigned to a text by nltk's pos_tag?
body: <p>I am using pos_tag from nltk to tag text in a set of (untagged) technical documents and getting good results but it always tags words like "authenticated" as a verb when sometimes it can be used as an adjective. In other words, simply changing the tag would not work every time.</p>
  
  <p>Is there a good way to override or correct the tagging results that take account of context?</p>