query: select min(weight) from cars_data where cylinders  =  8 and year  =  1974
question: What is the minimum weight of the car with 8 cylinder produced in 1974?
query_toks: select min ( weight ) from cars_data where cylinders = 8 and year = 1974
query_toks_no_value: select min ( weight ) from cars_data where cylinders = value and year = value
question_toks: What is the minimum weight of the car with 8 cylinder produced in 1974?