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