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