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_21 (place VARCHAR, season VARCHAR, rank_by_average VARCHAR)
### Question:
What was the place in season 8 with a rank by average at 139?
### Answer:
SELECT place FROM table_name_21 WHERE season = "8" AND rank_by_average = "139"