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