CREATE TABLE table_47533 ("Frequency" CLOB, "Call sign" CLOB, "Location" CLOB, "Name / Format" CLOB, "Owner" CLOB)

Which Call sign has a Frequency of 102.5 fm?
SELECT "Call sign" FROM table_47533 WHERE "Frequency" = '102.5 fm'
SELECT "Call sign" FROM "table_47533" WHERE "Frequency" = '102.5 fm'