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