CREATE TABLE phone (Name VARCHAR, Phone_id VARCHAR, Phone_ID VARCHAR)
CREATE TABLE phone_market (Name VARCHAR, Phone_id VARCHAR, Phone_ID VARCHAR)

List the names of phones that are not on any market.
SELECT Name FROM phone WHERE NOT Phone_id IN (SELECT Phone_id FROM phone_market)
SELECT "Name" FROM "phone" WHERE NOT "Phone_id" IN (SELECT "Phone_id" FROM "phone_market")