<prompt> Translate the following text to EnglishKatika ukumbi wa kanisa la Ghirlandaio, kuna picha za Madonna na Mtakatifu Yohana, ambazo zinaonyesha maisha ya Yesu Kristo.  <response>: Covering the chancel behind the main altar, the Ghirlandaio frescoes of the lives of the Madonna and St. John kept the masters entire workshop busy from 1485 to 1490. 