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