新疆兄妹在义乌：三天销售近万只馕

Group 1 - The article highlights the success of a brother-sister duo from Xinjiang who sold nearly 10,000 pieces of naan in Yiwu within three days, showcasing the potential of regional food products in urban markets [1] - This event reflects the growing trend of local specialties gaining popularity in larger cities, indicating a shift in consumer preferences towards authentic and traditional foods [1] - The rapid sales figures suggest a strong demand for ethnic foods, which could present investment opportunities in the food and beverage sector, particularly for businesses focusing on regional cuisines [1] Group 2 - The article does not provide additional relevant content for further summarization [2]