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