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