bangrxangu fu'ivla

x₁ is the Korean language used by x₂ to express/communicate x₃ (si'o/du'u, not quote).

Cf. bangu, bangrgogurio, gugdrgogurio, xangulu.

jbovlaste

In notes:

banku'oru: x₁ is the language with ISO 639-3 code “kor” (Korean).
xangulu: x₁ is a hangul (Korean alphabet) of sound x₂.