def stem_string(self, string):
return regex.np_normalize(' '.join(self.stem(string.split())))
def get_string(tree=None):
# Returns the normalized (lower-case) and stemmed string of the leaves of the tree
words = [word for word in tree.leaves() if not word in ["-LRB-", "-RRB-"]]
return regex.np_normalize(' '.join(words))
