x1 is a source language for Lojbanic gismu x2, contributing word x3 (zoi) to make it, which were adapted into the Lojban alphabet as x4 (lo'u or zoi), the language having weight in the algorithm x5 (li)
Designed with the intent to describe etymology of Lojbanic gismu. The algorithm mentioned in the description of a xe jbogimkra is described in CLL chapter 4.14 (https://mw.lojban.org/extensions/cll/4/14/). See also jungo glico xindo spano rusko xrabo fa'u