def word_to_vector_list(self, word, numeric=False, xsampa=False):
        """Return a list of feature vectors, given a Unicode IPA word.

        Args:
            word (unicode): string in IPA
            numeric (bool): if True, return features as numeric values instead
                            of strings

        Returns:
            list: a list of lists of '+'/'-'/'0' or 1/-1/0
        """
        if xsampa:
            word = self.xsampa.convert(word)
        tensor = list(map(self.segment_to_vector, self.segs(word)))
        if numeric:
            return self.tensor_to_numeric(tensor)
        else:
            return tensor
Return a list of feature vectors, given a Unicode IPA word.

        Args:
            word (unicode): string in IPA
            numeric (bool): if True, return features as numeric values instead
                            of strings

        Returns:
            list: a list of lists of '+'/'-'/'0' or 1/-1/0