Individual variables are usually indicated with the letters 'x', 'y', 'w' and 'z', optionally followed by an integer (e.g., 'x0', 'y332').
Xi vulavuriwa ngopfu le Nyembani, xi twala hi ku tirhisa "c," "g" na "bw" ematsan'wini ya "x," "dy" na "by" - (Ni ku bwelile ku ni ga cinkwa).