Feature extraction assignment for training machine learning classifier in python

[mimsichka23 at gmail.com]

Hi all, I have a question concerning this task. I need to train a classifier for a list of treebank sentences and extract features POS and FORM and then train a transition-based parser algorithm? Do you have any idea how I can do that, I used CountVectorizer and MultinomialNB but i have difficulty implementing the code.. 
Id be thankful if you could give me a hint..