What is the callsign when power kw is 25kw?
CREATE TABLE table_23915973_1 (callsign VARCHAR, power_kw VARCHAR)
SELECT callsign FROM table_23915973_1 WHERE power_kw = "25kW"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_23915973_1 (callsign VARCHAR, power_kw VARCHAR) Question: What is the callsign when power kw is 25kw? [/INST] SELECT callsign FROM table_23915973_1 WHERE power_kw = "25kW" </s>