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