CREATE TABLE table_42411 ("City of license" TEXT, "Identifier" TEXT, "Frequency" TEXT, "Power" TEXT, "Class" TEXT, "RECNet" TEXT)

What is Identifier, when City of License is Terrace Bay?
SELECT "Identifier" FROM table_42411 WHERE "City of license" = 'terrace bay'
SELECT "Identifier" FROM "table_42411" WHERE "City of license" = 'terrace bay'