Hack to teach Siri correct spelling of ANY word it keeps getting wrong

I play chess and for five years Siri has spelled "PAWNS" as "PONDS". I have a fairly normal US accent, Midwest. Here's the hack. Fix it the same way you fix Siri, to correctly spell someone's last name.

1. Create a contact card with the last name "pawns"
2. Go to edit -> add field -> add Phonetic Last Name. Type in the word "ponds".
3. Siri immediately started spelling it "pawns". Problem solved. Only issue is now I have a strange entry in my contacts, but I can live with that.