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