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