text: INSERT INTO department (department_name)
  VALUES ('Software');
  INSERT INTO department (department_name)
  VALUES ('Looney Bin');
  
  INSERT INTO role (title, salary, department_id)
  VALUES ('Software Lead', 200000, 1);
  INSERT INTO role (title, salary, department_id)
  VALUES ('Engineer', 100000, 1);
  INSERT INTO role (title, salary, department_id)
  VALUES ('Finding Neemo', 1000, 2);
  INSERT INTO role (title, salary, department_id)
  VALUES ('Looney Lead', 900000, 2);
  
  -- Employees
  INSERT INTO employee (first_name, last_name, role_id)
  VALUES ('Uncle', 'Sam', 1);
  INSERT INTO employee (first_name, last_name, role_id, manager_id)
  VALUES ('Billy', 'Thomas', 2, 1);
  INSERT INTO employee (first_name, last_name, role_id, manager_id)
  VALUES ('Jolly', 'Green', 2, 1);
  INSERT INTO employee (first_name, last_name, role_id, manager_id)
  VALUES ('Sam', 'Wise', 2, 1);
  
  
  
  INSERT INTO employee (first_name, last_name, role_id)
  VALUES ('Willy', 'Wonka', 4);
  INSERT INTO employee (first_name, last_name, role_id, manager_id)
  VALUES ('Maddam', 'MadMan', 3, 5);
  INSERT INTO employee (first_name, last_name, role_id, manager_id)
  VALUES ('Old', 'Yeller', 3, 5);
  INSERT INTO employee (first_name, last_name, role_id, manager_id)
  VALUES ('Uncle', 'Sam', 3, 5);