囗

口: 回 圖 圜 圓

凵: 圌

𠄌: 囡

乛: 囝

丿: 囫

丶: 囥 圃 國

人: 四 圈 圇 囹 囚

一: 圄

十: 固 囤 恩 囿 團 園 因 困
圉 圍

Above characters begin with the 囗 shape.

Large groups of characters are subsorted first via second element using:
囗⺆凵𠄌
乛厂丿丶
八一丨十
Then via trailing element using:
口山乚
⺆𠃌亅
丿丶㇏乂八小
丨一土十