query: SELECT grade FROM Highschooler GROUP BY grade HAVING count(*)  >=  4
question: Show me all grades have at least 4 student.
query_toks: SELECT grade FROM Highschooler GROUP BY grade HAVING count ( * ) > = 4
query_toks_no_value: select grade from highschooler group by grade having count ( * ) > = value
question_toks: Show me all grades have at least 4 student.