<prompt> Translate the following text to EnglishKanisa 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.  <response>: Distinguished 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. 