dub ji'i sre lujvo

x₁ mistakes/confuses x₂ with/for x₃

In notes:

ji'isre: x₁ mistakenly thinks/opines that x₂ (du'u) is true about subject x₃
vukna: x₁ confuses x₂ with x₃; x₁ misidentifies x₂ as x₃