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