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