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