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