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