CREATE TABLE teachers (lastname VARCHAR(255), classroom VARCHAR(255)); CREATE TABLE list (classroom VARCHAR(255), firstname VARCHAR(255), lastname VARCHAR(255))
Find the last names of all the teachers that teach GELL TAMI.
    
SQL: SELECT T2.lastname FROM list AS T1 JOIN teachers AS T2 ON T1.classroom = T2.classroom WHERE T1.firstname = "GELL" AND T1.lastname = "TAMI"