def get_db_right_side(node, matcher):
    """Find if adding to right syllable would cause matching syllable with known word.
    Return 2 if surely add to right syllable,
    1 if maybe add to right syllable,
    0 if not know."""

    score = matcher.char_concord(node.text + str(node.next.syllable)) if node.next.syllable else 0

    if score >= 4:
        return 2
    elif score == 3:
        return 1
    else:
        return 0