What are the full name (first and last name) and salary for all employees who does not have any value for commission?
return employees ;return #1 who does not have value for commission ;return first names of #2 ;return last names of #2 ;return salary of #2 ;return #3 ,  #4 ,   #5
['select', 'filter', 'project', 'project', 'project', 'union']