CREATE TABLE organizations (organization_id VARCHAR(255), organization_name VARCHAR(255)); CREATE TABLE individuals (individual_last_name VARCHAR(255), individual_id VARCHAR(255)); CREATE TABLE organization_contact_individuals (organization_id VARCHAR(255), individual_id VARCHAR(255), date_contact_to VARCHAR(255))
Find the last name of the latest contact individual of the organization "Labour Party".
    
SQL: SELECT t3.individual_last_name FROM organizations AS t1 JOIN organization_contact_individuals AS t2 ON t1.organization_id = t2.organization_id JOIN individuals AS t3 ON t2.individual_id = t3.individual_id WHERE t1.organization_name = "Labour Party" ORDER BY t2.date_contact_to DESC LIMIT 1