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