Which students in third grade are not taught by teacher COVIN JEROME? Give me the last names of the students.
return students ;return #1 in third grade ;return teachers that  #2 are taught by ;return #2 where #3 is  COVIN JEROME ;return #2 besides #4 ;return the  last names of #5
['select', 'filter', 'project', 'comparative', 'discard', 'project']