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