<prompt> Translate the following text to SwahiliIt has a fine central portal with reliefs of Old Testament scenes on its pilasters sculpted with great dignity and power by Siena-born master Jacopo della Quercia.  <response>: Jumba hilo lina nguzo ya kati yenye ukutani wenye picha za Agano la Kale zilizochongwa kwa heshima na kwa nguvu na Jacopo della Querccia, msanii wa Siena. 