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