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