Table schema:
CREATE TABLE Addresses (line_1 VARCHAR, address_id VARCHAR); CREATE TABLE Student_Addresses (monthly_rental INTEGER, address_id VARCHAR)

Question: What are the line 1 and average monthly rentals of all student addresses?
SQL: SELECT T1.line_1, AVG(T2.monthly_rental) FROM Addresses AS T1 JOIN Student_Addresses AS T2 ON T1.address_id = T2.address_id GROUP BY T2.address_id