query: SELECT avg(enrollment) ,  max(enrollment) ,  min(enrollment) FROM school
question: Showing that average, maximum, minimum all schools enrollment.
query_toks: SELECT avg ( enrollment ) , max ( enrollment ) , min ( enrollment ) FROM school
query_toks_no_value: select avg ( enrollment ) , max ( enrollment ) , min ( enrollment ) from school
question_toks: Showing that average, maximum, minimum all schools enrollment.