query: SELECT grade FROM Highschooler GROUP BY grade HAVING count(*)  >=  4
question: Which grades have 4 or more high schoolers?
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: Which grades have 4 or more high schoolers?