query: SELECT AVG(Price) ,  Manufacturer FROM Products GROUP BY Manufacturer
question: Are Selecting the average price of each manufacturer's products, showing only manufacturer's codes.
query_toks: SELECT AVG ( Price ) , Manufacturer FROM Products GROUP BY Manufacturer
query_toks_no_value: select avg ( price ) , manufacturer from products group by manufacturer
question_toks: Are Selecting the average price of each manufacturer's products, showing only manufacturer's codes.