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