def _clean_page_wheel(text):
    """
    remove unexpected characters

    @param      text        string
    @return                 string
    """
    text = text.replace('&quot;', "'")
    text = text.replace('&#8209;', '-')
    text = text.replace('&#46;', '.')
    text = text.replace(' &middot; ', '-')
    text = text.replace('&ndash;', '-')
    return text
