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