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