Did this with shona.On the road trip we (3 human occupants) spoke to Gemini in ndebele, karanga, portuguese and ndau and have switch seamlessly to another lanuage like german without loosing the thread of the conversation. what impressed me was its ability to recognize the subtle dialects of shona being spoken, articulate its unncertainty, ask for clarification and carry on. when asked to speak those dialects it politely lamented it could not. when pushed it insisted and basically apologized in a technically correct but awefully pronounced sentence of the dialect before going back to english.