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