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