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