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