Task: Text to Code
Input (English): Step 1: For each row in Organization_Contact_Individuals table, find corresponding rows in Individuals table and in Organizations table.
Step 2: find individual_last_name of the results of step 1 whose organization_name equals Labour Party
Output (English): SELECT T1.individual_last_name FROM Individuals AS T1 JOIN Organizations AS T2 JOIN Organization_Contact_Individuals AS T3 ON T1.individual_id = T3.individual_id AND T3.organization_id = T2.organization_id WHERE T2.organization_name = "Labour Party"