<prompt> Translate the following text to SwahiliThe crypt beneath the square contains walls and foundations from the Gallic, Roman, and medieval eras, and a well designed exhibition on early Paris.  <response>: Chumba cha chini chini ya mraba huo kina kuta na misingi kutoka enzi za Gallic, Kirumi, na enzi za kati, na maonyesho yaliyobuniwa vizuri juu ya Paris ya mapema. 