import re


def get_ascent_type(bs_obj):
    """
    gets the ascent style: Boulder, Mixed, Trad
    it will be useful for future difficulties classification and their representation
    :param bs_obj: BeautifulSoup object
    :return: str
    """
    rez = bs_obj.find("span", {"class": re.compile("tags .+")})
    if rez:
        return rez.text
    return "Unknown"