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