Find the payment method code used by more than 3 parties.
SELECT payment_method_code FROM parties GROUP BY payment_method_code HAVING count(*)  >  3
SELECT payment_method_code FROM parties GROUP BY payment_method_code HAVING count(*)  >  3
[{'payment_method_code': 'Cash'}, {'payment_method_code': 'Cheque'}, {'payment_method_code': 'Credit Card'}]