CREATE TABLE machine (machine_id VARCHAR(255), value_points INTEGER); CREATE TABLE repair_assignment (machine_id VARCHAR(255), technician_ID VARCHAR(255)); CREATE TABLE technician (Name VARCHAR(255), technician_ID VARCHAR(255))
Show names of technicians who are assigned to repair machines with value point more than 70.
    
SQL: SELECT T3.Name FROM repair_assignment AS T1 JOIN machine AS T2 ON T1.machine_id = T2.machine_id JOIN technician AS T3 ON T1.technician_ID = T3.technician_ID WHERE T2.value_points > 70