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