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