What source has a cardwell of 20%?
CREATE TABLE table_name_18 (source VARCHAR, cardwell VARCHAR)
SELECT source FROM table_name_18 WHERE cardwell = "20%"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_18 (source VARCHAR, cardwell VARCHAR) Question: What source has a cardwell of 20%? [/INST] SELECT source FROM table_name_18 WHERE cardwell = "20%" </s>