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