title: Can WordNetLemmatizer in Nltk stem words?
body: <p>I want to find word stems with <code>Wordnet</code>.  Does <code>wordnet</code> have a function for stemming? 
  I use this import for my stemming, but it doesn't work as expected.</p>
  
  <pre><code>from nltk.stem.wordnet import WordNetLemmatizer
  WordNetLemmatizer().lemmatize('Having','v')
  </code></pre>