x_{1} is the 'ce ki tau jei' dialect of Lojban, used by x_{2} to communicate x_{3} (si'o/du'u)

Place structure based on bangu. Refers to a variant of the 'ce ki tau jau' (2 to communicate x_{3} (si'o/du'u)">tcekitaujau) dialect that differs on what jo'u is swapped with: see http://mw.lojban.org/papri/ce_ki_tau_jau. Use of this dialect can be marked with 'jo'au tcekitaujei'

- pai'i
- Digit/number: pi (denoted "π"; approximately 3.1416...); the constant defined by the ratio of the circumference to the diameter of all circles in Euclidean space.
- tcekitaujau
- x
_{1}is the "ce ki tau jau" dialect of Lojban, used by x_{2}to communicate x_{3}(si'o/du'u)