"4" . _:b8473970 . _:b8473970 . . _:b16318968 . _:b16318968 . _:b8473970 . _:b8473970 . _:b16318968 . _:b8473970 . _:b8473970 . _:b8473970 . . _:b16318968 . . _:b8473970 . _:b8473970 . . _:b8473970 . _:b8473970 . _:b8473970 . _:b16318968 . _:b16318968 .