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