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