日本大米和鸡蛋价格均创有统计以来最高值，一袋5公斤装大米均价约合194元人民币

Group 1 - The core point of the articles highlights the significant increase in prices of staple foods in Japan, particularly rice and eggs, reaching record highs, which has led consumers to seek cheaper alternatives [1][2] - According to the Ministry of Agriculture, Forestry and Fisheries, the average price of a 5-kilogram bag of rice was 4,337 yen (approximately 194 RMB), remaining above 4,000 yen for 16 consecutive weeks [1] - The average wholesale price of medium-sized eggs in Tokyo reached 324 yen per kilogram (approximately 14.5 RMB), marking the highest price recorded [1] Group 2 - The rising prices of essential food items have prompted Japanese consumers to look for substitutes, opting for cheaper options like chicken, margarine, and carrots instead of beef, butter, and tomatoes [2] - Due to the ongoing price surge, many individuals are replacing rice with noodles and bread as a more affordable alternative [2] - The overall food price increase in Japan is attributed to rising raw material costs, labor expenses, and the depreciation of the yen, with over 20,000 food items experiencing price hikes this year and nearly 3,600 more expected to increase in price early next year [1]