x1=t1=p2=p3=j2=v2 is a little-endian / least-significant-first tanru formed with x2=t2 modifying x3=t3=j1=v1, giving meaning x4=t4 in usage/instance x5=t5=v3.
When used as a language feature (with baunpli, e.g. «.i mi baunpli la vajyje'ipoitau le vi selsku»), according to this definition, keep tanru order unreversed, so that without co the first (left) side remains the seltau and the second (right) side remains the tertau, and with co the second (right) side remains the tertau and the first (left) side remains the tertau; only tanru ordering would be reversed, and not grammar (in particular tanru grouping and associativity, e.g. with bo and co, which would retain their right-associativity) or lujvo. ni'o See also: vajli'epoitau (big-endian tanru), co'e'i'au'i («sei baunpli be la vajli'epoitau»), vajyje'ipoi (little-endian).