How can I prevent SerializeJSON from changing Yes/No/True/False strings to boolean?

Question

I have a data struct being stored in JSON format, converted using the serializeJSON function. The problem I am running into is that strings that can be boolean in CF such as

Answer 1

I'd try javacasting it: key = javacast("string", "yes"). That should force CF to recognize it as a string rather than as a boolean.