CREATE TABLE table_22133191_3 (date_of_vacancy VARCHAR, manner_of_departure VARCHAR)

What is the date of vacancy for the person that left because of end of caretaker contract?
SELECT date_of_vacancy FROM table_22133191_3 WHERE manner_of_departure = "End of caretaker contract"
SELECT "date_of_vacancy" FROM "table_22133191_3" WHERE "End of caretaker contract" = "manner_of_departure"