_:vb23407 . _:vb23408 . _:vb23410 . _:vb23409 "duration" . _:vb23408 . _:vb23409 . _:vb23407 . _:vb23407 "duration" . . . _:vb23408 . _:vb23410 . _:vb23409 . _:vb23409 . _:vb23410 "1" . _:vb23410 . _:vb23407 . _:vb23408 "duration" .