<prompt> Translate the following text to SwahiliThe Sacre-Caurs conspicuous whiteness comes from the local Chateau-Landon limestone, which bleaches on contact with carbon dioxide in the air and hardens with age.  <response>: Upepo wa Sacre-Caur unatokana na mawe ya chokaa ya Chateau-Landon, ambayo hupungua wakati inapowasiliana na kaboni dioksidi katika hewa na kuwa ngumu kadiri inavyozeeka. 