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