<prompt> Translate the following text to SwahiliA second, deeply eroded stone obelisk is known as the Column of Constantine Porphyrogenitus, as an inscription on its base records that the emperor of that name a.d.913 959 had it restored and sheathed in gilded bronze plates.  <response>: Mfano wa pili ni ule wa Sumu ya Konstantino Porfirogeni Sumu ya Konstantino Porfirogeni ambayo ilijengwa na mfalme wa Roma mwaka 913 - 959 KK na kufunikwa kwa mabamba ya shaba. 