When dxzb-tv is the call sign what is the power kw?
CREATE TABLE table_23394920_1 (power_kw VARCHAR, callsign VARCHAR)
SELECT power_kw FROM table_23394920_1 WHERE callsign = "DXZB-TV"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_23394920_1 (power_kw VARCHAR, callsign VARCHAR) Question: When dxzb-tv is the call sign what is the power kw? [/INST] SELECT power_kw FROM table_23394920_1 WHERE callsign = "DXZB-TV" </s>