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