display the employee number and job id for all employees whose salary is smaller than any salary of those employees whose job title is MK_MAN.
return employees  ;return job  titles of #1 ;return #1 where #2 is MK_MAN ;return salaries of #3 ;return highest of #4 ;return salaries of #1 ;return #1 where #6 is lower than #5 ;return employee numbers of #7 ;return job  id of #7 ;return #8 ,  #9
['select', 'project', 'comparative', 'project', 'aggregate', 'project', 'comparative', 'project', 'project', 'union']