What is the production code for episode 31 in the series?
CREATE TABLE table_23937219_3 (prod_code INTEGER, series__number VARCHAR)
SELECT MIN(prod_code) FROM table_23937219_3 WHERE series__number = 31
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_23937219_3 (prod_code INTEGER, series__number VARCHAR) Question: What is the production code for episode 31 in the series? [/INST] SELECT MIN(prod_code) FROM table_23937219_3 WHERE series__number = 31 </s>