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