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