query: SELECT major ,  avg(age) ,  min(age) ,  max(age) FROM Student GROUP BY major
question: What are the average, minimum, and max ages for each of the different majors?
query_toks: SELECT major , avg ( age ) , min ( age ) , max ( age ) FROM Student GROUP BY major
query_toks_no_value: select major , avg ( age ) , min ( age ) , max ( age ) from student group by major
question_toks: What are the average, minimum, and max ages for each of the different majors?