select min(weight) from cars_data where cylinders  =  8 and year  =  1974
What is the minimum weight of the car with 8 cylinders produced in 1974 ?
select min ( weight ) from cars_data where cylinders = 8 and year = 1974
select min ( weight ) from cars_data where cylinders = value and year = value
What is the minimum weight of the car with 8 cylinders produced in 1974 ?