What is the frequency of the radio station with a call sign of WGNR-FM?
CREATE TABLE table_name_19 (frequency VARCHAR, call_sign VARCHAR)
SELECT frequency FROM table_name_19 WHERE call_sign = "wgnr-fm"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_19 (frequency VARCHAR, call_sign VARCHAR) Question: What is the frequency of the radio station with a call sign of WGNR-FM? [/INST] SELECT frequency FROM table_name_19 WHERE call_sign = "wgnr-fm" </s>