[ num ] sp capword sp othword sp capword sp othword sp capword sp othword sp capword sp othword sp capword sp othword capword sp ( upword ) , sp capword , sp capword , sp capword sp num - num , sp year sp / sp capword . sp othword sp capword - capword sp capword , capword sp caplet othword . sp – – sp upword - capword , sp year .