query: SELECT LName FROM STUDENT WHERE Sex  =  "F" ORDER BY Age DESC
question: What the last name female student, ordered by ages descending?
query_toks: SELECT LName FROM STUDENT WHERE Sex = `` F '' ORDER BY Age DESC
query_toks_no_value: select lname from student where sex = value order by age desc
question_toks: What the last name female student, ordered by ages descending?