o or u are possible alternatives
b or v are possible alternatives
c or k are possible alternatives
sh, ch, sci, sch, ?, are possible alternatives for the ?sh? sound
ch, h, kh (gutteral) ? may be interchangeable
dj, g, tch, tsh, ç, ? may be interchangeable
g may or may not be followed by a u or h in possible alternative spellings
s or z are interchangeable alternatives at the end of names