{"conversations": [{"from": "human", "value": "Esan bost Errusiako hiri handienei."}, {"from": "gpt", "value": "Hiriak milioika pertsona baino gehiago ditu."}, {"from": "human", "value": "Esan hurrengo bost hirikoei."}, {"from": "gpt", "value": "Chambins, 1990eko hamarkadan."}]}