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_27383390_4 (date_of_appointment VARCHAR, position_in_table VARCHAR)
### Question:
When is the date of appointment when the position in table is 16?
### Answer:
SELECT date_of_appointment FROM table_27383390_4 WHERE position_in_table = 16