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