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_name_51 (year VARCHAR, bbc_two_rank VARCHAR)
### Question:
In what year was BBC 2 13th in rank?
### Answer:
SELECT year FROM table_name_51 WHERE bbc_two_rank = "13th"