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