<prompt> Translate the following text to EnglishPuerta del Sol Lango la Jua ni uwanja wenye shughuli nyingi zaidi wa Madrid na kwa karne nyingi umekuwa kitovu cha kibiashara cha jiji hilo.  <response>: Puerta del Sol Gateway to the Sun is Madrids busiest plaza and for centuries has been the commercial hub of the city. 