query: SELECT investor_id ,  avg(share_count) FROM TRANSACTIONS GROUP BY investor_id
question: Do Show the average share count of transactions for different investors.
query_toks: SELECT investor_id , avg ( share_count ) FROM TRANSACTIONS GROUP BY investor_id
query_toks_no_value: select investor_id , avg ( share_count ) from transactions group by investor_id
question_toks: Do Show the average share count of transactions for different investors.