% Preprocessing rules for Interlingua
% Define vowel set
::vowels:: = a|e|i|o|u

% Normalize 'qu' to 'kw' for phonemic clarity
qu -> kw / _

% Normalize 'ch' to 'k'
ch -> k / _

% Ensure soft 'c' before 'e' and 'i' converts properly to 'tʃ'
ce -> tʃ / _
ci -> tʃ / _

% Ensure hard 'g' before 'e' and 'i' converts to 'dʒ'
ge -> dʒ / _
gi -> dʒ / _