In one of my intents, I ask the users to confirm a slot value. However, without proper formatting in the code (The users are required to spell something out), it ends up sounding like garbled nonsense. Is it possible to return a slot value from the lambda which has passed through some cleaning in order to sound better when spoken? Basically, the slot value which is passed to my lambda is something like abcde. I would like the device to read out A. B. C. D. E. in order for it to fully spell out the word.