'Returns True if the pair of tokens may form a collocation given
log-likelihood statistics.'

def _is_potential_collocation(self, aug_tok1, aug_tok2):

    return ((self.INCLUDE_ALL_COLLOCS or (self.INCLUDE_ABBREV_COLLOCS and aug_tok1.abbr) or (aug_tok1.sentbreak and (aug_tok1.is_number or aug_tok1.is_initial))) and aug_tok1.is_non_punct and aug_tok2.is_non_punct)
