[ num ] sp capword sp upword . sp capword sp othword sp othword sp othword sp othword sp othword sp othword sp othword capword sp othword sp othword sp othword sp othword sp othword - othword sp caplet * sp upword - othword sp othword sp [ capword sp othword sp othword ] . capword : sp capword sp othword sp capword ; sp year . sp capword sp othword : sp othword : / / othword . othword - othword . othword . othword / othword / year - othword . othword . caplet .