noun
Banchō Seisaku Kenkyūjo (LDP faction)
A faction within Japan's Liberal Democratic Party (LDP). The name is a proper noun referring to this specific political group.
番町政策研究所は自民党の派閥の一つです。
The Banchō Seisaku Kenkyūjo is one of the factions of the LDP.
The name is composed of 番町 (Banchō, a district in Tokyo), 政策 (seisaku, 'policy'), and 研究所 (kenkyūjo, 'research institute'). It is the formal name of a political faction, and its origin is directly tied to the LDP's internal organization.