title: Part-of-Speech Tagging with Lucene
body: <p>I'm building an emotion recognition system for chat applications. In that the core part is finding the verb  in the user entered text, which can be done with a part-of-speech tagger.
  Is it possible to build a part-of-speech tagger with Lucene? If not, what is a good open-source/libre software package or system I can use?</p>