Group 1 - The article reflects on the nostalgic experiences of enjoying traditional Beijing snacks, particularly focusing on the unique flavors and cultural significance of local delicacies like "灌肠" (fried sausage) and "豆汁" (fermented mung bean milk) [2][3] - "灌肠" is described as a famous snack originating from the Ming Dynasty, made from a mixture of starch, tofu residue, minced deer meat, and red yeast rice, steamed and then pan-fried to achieve a crispy texture [2] - "豆汁" is highlighted as a distinctive Beijing specialty, with a unique preparation method that requires careful attention to avoid boiling over, which would diminish its flavor [2][3] Group 2 - The article emphasizes the importance of traditional food vendors in the community, showcasing a scene at a "豆汁" stall where the vendor engages warmly with customers, reflecting the social aspect of food culture in Beijing [3] - The narrative illustrates the process of developing a taste for "豆汁," indicating that initial aversion can transform into appreciation over time, which mirrors the broader cultural acceptance of local cuisine [2][3] - The relationship between the narrator and their grandfather is central to the narrative, highlighting how familial connections and shared food experiences contribute to the cultural identity associated with these traditional snacks [3]