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