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_39 (reference VARCHAR, japanese_title VARCHAR)
### Question:
What reference is used with the title アイシテル?
### Answer:
SELECT reference FROM table_name_39 WHERE japanese_title = "アイシテル"