Task: Text to Code
Input (English): Step 1: For each row in Individuals table, find the corresponding rows in Organization_Contact_Individuals table.
Step 2: find individual_last_name of the results of step 1 with largest value of date_contact_to
Output (English): SELECT T1.individual_last_name FROM Individuals AS T1 JOIN Organization_Contact_Individuals AS T2 ON T1.individual_id = T2.individual_id ORDER BY T2.date_contact_to Desc LIMIT 1