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