[ capword ( year smallet ) ] sp capword , sp caplet . sp caplet . sp ( year smallet ) . sp upword : sp capword sp othword - othword sp othword sp othword sp othword othword sp othword . sp capword sp capword , sp num sp ( num - num ) , sp num – num . sp upword sp othword : / / othword . othword / num . num / othword smallet year . sp capword sp othword sp othword sp othword sp othword sp year sp capword sp othword sp capword sp capword .