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