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