gistfile1.py

#e.g. sentence = "To confirm recent reports [7, 8, 9] that human EB-1 is a plus-tip-tracking protein in vitro,
# we visualized EB1 interacting with microtubules [2, 35] polymerizing from stabilized seeds using 2-color TIRF microscopy."

def get_connotation(word):
   # some black magic
   
   return score #(1 = positive, -1 = negative, 0 = neutral)


def find_features(sentence):
   trivial_feature = len(sentence.split(' ')) #approx. number of words
 
   
   return [trivial_feature, ] #plus some non-trivial features...