::vlesscons:: = ts|tʃ|f|x|k|p|s|ʃ|t|ks
::vdcons:: = b|d|dz|dʒ|ɡ|ɡz|z|ʒ

% Devoicing
b -> p / _ (#|::vlesscons::)
d -> t / _ (#|::vlesscons::)
dz -> ts / _ (#|::vlesscons::)
dʒ -> tʃ / _ (#|::vlesscons::)
ɡ -> k / _ (#|::vlesscons::)
ɡz -> ks / _ (#|::vlesscons::)
v -> f / _ (#|::vlesscons::)
z -> s / _ (#|::vlesscons::)
ʒ -> ʃ / _ (#|::vlesscons::)

% Voicing
p -> b / _ (::vdcons::)
t -> d / _ (::vdcons::)
ts -> dz / _ (::vdcons::)
tʃ -> dʒ / _ (::vdcons::)
k -> ɡ / _ (::vdcons::)
f -> v / _ (::vdcons::)
s -> z / _ (::vdcons::)
ʃ -> ʒ / _ (::vdcons::)
ks -> gz / _ (::vdcons::)