query: SELECT avg(age) ,  max(age) ,  sex FROM student GROUP BY sex
question: Are Finding the average and most oldest ages for students with different sexes.
query_toks: SELECT avg ( age ) , max ( age ) , sex FROM student GROUP BY sex
query_toks_no_value: select avg ( age ) , max ( age ) , sex from student group by sex
question_toks: Are Finding the average and most oldest ages for students with different sexes.