What is the founding date if the letters are κψκ?
CREATE TABLE table_2538117_7 (founding_date VARCHAR, letters VARCHAR)
SELECT founding_date FROM table_2538117_7 WHERE letters = "ΚΨΚ"
### Context: CREATE TABLE table_2538117_7 (founding_date VARCHAR, letters VARCHAR) ### Question: What is the founding date if the letters are κψκ? ### Answer: SELECT founding_date FROM table_2538117_7 WHERE letters = "ΚΨΚ"