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