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