CREATE TABLE table_66476 ("City of license" CLOB, "Identifier" CLOB, "Frequency" CLOB, "Power" CLOB, "Class" CLOB, "RECNet" CLOB)

What power has thunder bay as the city of license?
SELECT "Power" FROM table_66476 WHERE "City of license" = 'thunder bay'
SELECT "Power" FROM "table_66476" WHERE "City of license" = 'thunder bay'