What call sign has a frequency of 91.3 MHz?
CREATE TABLE table_name_81 (call_sign VARCHAR, frequency_mhz VARCHAR)
SELECT call_sign FROM table_name_81 WHERE frequency_mhz = 91.3
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_81 (call_sign VARCHAR, frequency_mhz VARCHAR) Question: What call sign has a frequency of 91.3 MHz? [/INST] SELECT call_sign FROM table_name_81 WHERE frequency_mhz = 91.3 </s>