{"conversations": [{"from": "human", "value": "Per qu\u00e8 \u00e9s negre la neu als carrers?"}, {"from": "gpt", "value": "Probablement estigui contaminat amb pols."}, {"from": "human", "value": "No \u00e9s negre al bosc?"}, {"from": "gpt", "value": ""}]}