CREATE TABLE table_53996 ("Frequency" CLOB, "Call sign" CLOB, "Name" CLOB, "Format" CLOB, "Owner" CLOB)

What is the frequency of KQLX?
SELECT "Frequency" FROM table_53996 WHERE "Call sign" = 'kqlx'
SELECT "Frequency" FROM "table_53996" WHERE "Call sign" = 'kqlx'