What is the region 1 date for series 4
CREATE TABLE table_15823956_1 (region_1 VARCHAR, series VARCHAR)
SELECT region_1 FROM table_15823956_1 WHERE series = "4"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_15823956_1 (region_1 VARCHAR, series VARCHAR) Question: What is the region 1 date for series 4 [/INST] SELECT region_1 FROM table_15823956_1 WHERE series = "4" </s>