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