<prompt> Translate the following text to SwahiliDistinguished from others by the harmonious simplicity of its rib-vaulted nave, St. Francis of Assisi is the oldest church still standing in Velha Goa, perhaps dating as far back as 1521.  <response>: Kanisa la St. Francis of Assisi, ambalo linaonekana kuwa la kawaida, ni kanisa la kale zaidi lililopo katika eneo la Goa, na huenda lilijengwa mwaka wa 1521. 