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