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