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