"2020"^^ . _:b17792408 . . _:b17630799 . _:b15944207 . _:b15180708 . _:b17904135 . _:b21382690 . _:b21892418 . _:b15944206 . _:b21303497 . _:b21608276 . _:b23385378 . _:b18015817 . _:b20638839 .