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