query: SELECT avg(amount_of_transaction) FROM TRANSACTIONS WHERE transaction_type_code  =  "SALE"
question: Show the average amount of transactions with type code "SALE".
query_toks: SELECT avg ( amount_of_transaction ) FROM TRANSACTIONS WHERE transaction_type_code = `` SALE ''
query_toks_no_value: select avg ( amount_of_transaction ) from transactions where transaction_type_code = value
question_toks: Show the average amount of transactions with type code "SALE".