CREATE TABLE technician (Name VARCHAR2, technician_ID VARCHAR2)
CREATE TABLE machine (machine_id VARCHAR2, value_points NUMBER)
CREATE TABLE repair_assignment (machine_id VARCHAR2, technician_ID VARCHAR2)

Show names of technicians who are assigned to repair machines with value point more than 70.
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
SELECT "T3"."Name" FROM "repair_assignment" "T1" JOIN "machine" "T2" ON "T1"."machine_id" = "T2"."machine_id" AND "T2"."value_points" > 70 JOIN "technician" "T3" ON "T1"."technician_ID" = "T3"."technician_ID"