logical connective: sumti afterthought biconditional/iff/if-and-only-if.

- kijno
- x
_{1}is a quantity of/contains/is made of oxygen (O); [metaphor: supporting life/combustion]. - bango'unu
- x
_{1}is the language with ISO 639-3 code “oun” (!O!ung).

- ni'e'oi
- digit/number: Niven's smallest-exponent prime factorization constant c = zeta(3/2)/zeta(3) ≈ 2.1732543125195541382370898404…
- jivnrfarzu'e
- x
_{1}(mass/set) do orienteering in competition of type x_{2}[property of the event] with (other) rule(s) x_{3}[property of each participant]. - jakob
- Jacob