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