. "1831-02-22" . _:b4646831 "1831-02-22"^^ . _:b3891072 "1831"^^ . _:b4052515 . _:b4052515 "1831"^^ . _:b4646830 "1831-02-22"^^ . _:b4052516 . _:b3891072 . . . _:b4646830 . _:b4646831 . _:b4646830 . _:b4646831 . _:b3891071 . . _:b3891072 . _:b3891071 "1831"^^ . _:b4052516 . _:b4052516 "1831"^^ . _:b3891071 . _:b4052515 . "1831" .