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