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