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