日本第二季度短观小型制造业景气判断指数 1，预期-1，前值2。

Group 1 - The core viewpoint of the article indicates that Japan's small manufacturing sector is experiencing a decline in business sentiment, as reflected in the second quarter Tankan survey, with the judgment index dropping to 1, down from a previous value of 2 and below the expected value of -1 [1] Group 2 - The small manufacturing sector's sentiment index has decreased, suggesting potential challenges ahead for the industry [1] - The decline in the index may indicate a broader trend of weakening confidence among manufacturers in Japan [1] - The current index value of 1 suggests that more companies are reporting unfavorable conditions compared to those reporting favorable conditions [1]