ca'irjug bau lujvo

x₁ is the Standard Chinese/Standard Mandarin language used by x₂ to communicate x₃.

For "Mandarin" in general see berjungo. See also ca'irbau, jugbau, bangu.

lensisku

In notes:

jugbau: j₁=b₁ is a Sinitic language used by b₂ to communicate b₃ (si'o/du'u).