<prompt> Translate the following text to EnglishMosaiki hizo zimegawanywa katika vipande vinne vinavyoonyesha maisha ya Kristo na Bikira Maria, pamoja na picha za watakatifu mbalimbali, na mabamba makubwa ya kujitolea.  <response>: The mosaics are grouped into four narrative cycles depicting the lives of Christ and the Virgin Mary, along with portraits of various saints, and large dedicatory panels. 