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