query: SELECT billing_state ,  COUNT(*) FROM invoices WHERE billing_country  =  "USA" GROUP BY billing_state;
question: How invoices many have been billing each a state?
query_toks: SELECT billing_state , COUNT ( * ) FROM invoices WHERE billing_country = `` USA '' GROUP BY billing_state ;
query_toks_no_value: select billing_state , count ( * ) from invoices where billing_country = value group by billing_state
question_toks: How invoices many have been billing each a state?