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_23117208_4 (no_in_season INTEGER, written_by VARCHAR)
### Question:
Name the least number in season for jessica ball
### Answer:
SELECT MIN(no_in_season) FROM table_23117208_4 WHERE written_by = "Jessica Ball"