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