<prompt> Translate the following text to SwahiliAlthough the main building is not open to the public, the official residence of the Portuguese government may be visited by prearranged, guided tours.  <response>: Ingawa jengo kuu halijafunguliwa kwa umma, makao rasmi ya serikali ya Ureno yaweza kutembelewa kwa ziara zilizoandaliwa kimbele, zilizoongozwa. 