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