日本首相石破茂：将寻求与其他政党合作解决物价上涨问题；不会扩大正式执政联盟。

Group 1 - The core viewpoint is that Japanese Prime Minister Shigeru Ishiba aims to seek cooperation with other political parties to address the issue of rising prices, indicating a collaborative approach to economic challenges [1] Group 2 - The Prime Minister has stated that there will be no expansion of the formal ruling coalition, suggesting a focus on bipartisan efforts rather than increasing the coalition's size [1]