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