CREATE TABLE table_59395 ("Frequency" FLOAT, "Callsign" CLOB, "Brand" CLOB, "City of License" CLOB, "Type" CLOB)

What is Brand, when Frequency is '640'?
SELECT "Brand" FROM table_59395 WHERE "Frequency" = '640'
SELECT "Brand" FROM "table_59395" WHERE "Frequency" = '640'