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