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