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