Instruct: Classify Amazon reviews into positive or negative sentiment
Query: BEST BOOK ON EARTH!

THIS IS THE BEST BOOK IN THE WORLD, WHY OH WHY IS THERE NOT A SEQUEL? MY BOYFRIEND MADE ME READ IT AS IT'S ONE OF HIS FAVOURITES & I COULDN'T PUT IT DOWN..... MORE JB MORE! ( HOW ABOUT... THE FURTHER ADVENTURES OF JOHN TUBERSKI!)