':param lemmas: A dictionary where keys are lemmas and values are sets
or lists of words corresponding to that lemma.
:param stems: A dictionary where keys are stems and values are sets
or lists of words corresponding to that stem.
:type lemmas: dict(str): list(str)
:type stems: dict(str): set(str)'

def __init__(self, lemmas, stems):

    self.lemmas = lemmas
    self.stems = stems
    self.coords = []
    (self.gumt, self.gdmt, self.gwmt, self.gdnt) = (None, None, None, None)
    (self.ui, self.oi, self.sw) = (None, None, None)
    self.errt = None
    self.update()
