<prompt> Translate the following text to EnglishHasa, viwango vya chini kwa vitabu vingeondolewa, na hata kama kungekuwa na subclass tofauti kwa ajili yao, haingekuwa na viwango ambavyo havibadiliki na umbali.  <response>: Specifically, reduced rates for books would be eliminated, and even if there were a separate subclass for them, it would not have rates that are invariant with distance. 