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