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