What is the total number of the ERP W with a call sign of w242ak?
CREATE TABLE table_name_81 (erp_w VARCHAR, call_sign VARCHAR)
SELECT COUNT(erp_w) FROM table_name_81 WHERE call_sign = "w242ak"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_81 (erp_w VARCHAR, call_sign VARCHAR) Question: What is the total number of the ERP W with a call sign of w242ak? [/INST] SELECT COUNT(erp_w) FROM table_name_81 WHERE call_sign = "w242ak" </s>