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