STEL-uh AR-twa
* STEL - The "S" is pronounced like the "S" in "sun".
* uh - This is a short, unstressed vowel sound, like the "u" in "cup".
* AR - The "R" is pronounced as a soft "R", like the "R" in "bird".
* twa - The "t" is pronounced like the "t" in "tea", and the "wa" is pronounced as a single sound, like the "wa" in "water".
Let me know if you'd like me to spell it out phonetically!