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