<prompt> Translate the following text to EnglishEneo lao la zamani la maonyesho, Champ de Mars kubwa, sasa ni bustani ya kijani kibichi inayoenea hadi kwenye Mnara wa Eiffel.  <response>: Their former parade ground, the vast Champ de Mars, is now a green park stretching all the way to the Tour Eiffel. 