Which ERP W has a Class of A, and a Call sign of wffc?
CREATE TABLE table_name_50 (erp_w VARCHAR, class VARCHAR, call_sign VARCHAR)
SELECT erp_w FROM table_name_50 WHERE class = "a" AND call_sign = "wffc"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_50 (erp_w VARCHAR, class VARCHAR, call_sign VARCHAR) Question: Which ERP W has a Class of A, and a Call sign of wffc? [/INST] SELECT erp_w FROM table_name_50 WHERE class = "a" AND call_sign = "wffc" </s>