However, because these three stone monuments exist in a relatively small area in the same county and might have been built at about the same time, the relationship between the three monuments and the political situation at that time can be pointed out.
しかし、3碑が同一郡内の比較的近い範囲に存在することや建碑時期が近いと考えられることから、当時の政治的状況と3碑の関連性が指摘されることもある。