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