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