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