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