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