Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_2417330_4 (date_successor_seated VARCHAR, successor VARCHAR)
### Question:
Name the date successor seated for successor being vacant
### Answer:
SELECT date_successor_seated FROM table_2417330_4 WHERE successor = "Vacant"