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_2144389_9 (episodes_used VARCHAR, _number VARCHAR)
### Question:
When 1 is the number what episodes were used?
### Answer:
SELECT episodes_used FROM table_2144389_9 WHERE _number = 1