_:vb10821 . _:vb10825 . _:vb10826 . _:vb10821 . . . . _:vb10821 "INF" . . . _:vb10827 . _:vb10823 . _:vb10827 "1" . _:vb10821 . _:vb10822 . _:vb10826 . _:vb10823 . _:vb10824 . _:vb10822 "duration" . _:vb10824 . _:vb10823 "INF" . . _:vb10822 . _:vb10825 . _:vb10826 . _:vb10825 . _:vb10827 . _:vb10826 "credit" . _:vb10824 . _:vb10824 . _:vb10823 . _:vb10827 . _:vb10822 . _:vb10825 .