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_15823956_1 (region_1 VARCHAR, series VARCHAR)
### Question:
What is the region 1 date for series 4
### Answer:
SELECT region_1 FROM table_15823956_1 WHERE series = "4"