CREATE TABLE Addresses (address_id VARCHAR(255), zip_postcode VARCHAR(255)); CREATE TABLE Teachers (email_address VARCHAR(255), address_id VARCHAR(255))
What are the email addresses of teachers whose address has zip code "918"?
    
SQL: SELECT T2.email_address FROM Addresses AS T1 JOIN Teachers AS T2 ON T1.address_id = T2.address_id WHERE T1.zip_postcode = "918"