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