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