tr "aeiouyAEIOUY" "yaeiouYAEIOU" |\
tr "bcdfghjklmnpqrstvwxzBCDFGHJKLMNPQRSTVWXZ" \
"zbcdfghjklmnpqrstvwxZBCDFGHJKLMNPQRSTVWX" |\
sed \
-e 's/po/p/g' \
-e 's/Po/P/g' \
-e 's/PO/P/g' \
-e 's/q/qu/g' \
-e 's/Q/Qu/g'