Table schema:
CREATE TABLE market (Market_ID VARCHAR, Num_of_shops INTEGER); CREATE TABLE phone (Name VARCHAR, Phone_ID VARCHAR); CREATE TABLE phone_market (Market_ID VARCHAR, Phone_ID VARCHAR)

Question: Show the names of phones that are on market with number of shops greater than 50.
SQL: SELECT T3.Name FROM phone_market AS T1 JOIN market AS T2 ON T1.Market_ID = T2.Market_ID JOIN phone AS T3 ON T1.Phone_ID = T3.Phone_ID WHERE T2.Num_of_shops > 50