query: SELECT test_result ,  COUNT(*) FROM Student_Tests_Taken GROUP BY test_result ORDER BY COUNT(*) DESC
question: For each distinct test result, do find that number of students which getted that result.
query_toks: SELECT test_result , COUNT ( * ) FROM Student_Tests_Taken GROUP BY test_result ORDER BY COUNT ( * ) DESC
query_toks_no_value: select test_result , count ( * ) from student_tests_taken group by test_result order by count ( * ) desc
question_toks: For each distinct test result, do find that number of students which getted that result.