query: SELECT avg(mpg) FROM CARS_DATA WHERE Cylinders  =  4;
question: What-all the average miles per gallon(mpg) of the cars with 4 cylinder?
query_toks: SELECT avg ( mpg ) FROM CARS_DATA WHERE Cylinders = 4 ;
query_toks_no_value: select avg ( mpg ) from cars_data where cylinders = value
question_toks: What-all the average miles per gallon(mpg) of the cars with 4 cylinder?