uafli fu'ivla

x1 fails to understand / figure out x2 (du'u) about x3.

A uivla based on ua and fliba. The implication is that x2 is a correct understanding of x3, but x1 fails to achieve it.

In notes:

s1=j1 misunderstands fact/truth j2 (du'u) about subject j3, an error under conditions s3 by standard s4.