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_18367694_3 (no_in_season VARCHAR, directed_by VARCHAR)
### Question:
When joan tewkesbury is the director what is the number in seasons?
### Answer:
SELECT no_in_season FROM table_18367694_3 WHERE directed_by = "Joan Tewkesbury"