Where are the say macros defined?

Hi all, Can anyone please point me at the configuration files where the definition for the say macros are? I mean. let's say I have this: session:execute('say', 'es number pronounced '..${some_number}); Then if ${some_number} is 403, then it gets pronounced as: "four .... hundred ... and ... three". Great! I have a problem witht the Spanish pronuntiation of 100 to 199 (yes, only that range) . It does not work as expected, So, I want to check where that is set and see if I can fix it. Thanks! Wilmar