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