Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Example Input: THIS TOY WAS OUR GRANDSON'S FAVORITE, SO I JUST HAD TO FIND IT AGAIN FOR OUR NEWEST GRANDCHILD. THANK GOODNESS FOR ONLINE SHOPPING.
Example Output: Positive

Example Input: This product arrived on time and in excellent condition. These boots have a good arch and seem sturdy. They do look a little cheaper than I anticipated. The tread is great. Size runs true.
Example Output: Positive

Example Input: I bought this book hoping it could help me understand shakespeare's words better, but it didnt. Instead I had to look up every other word in a dictionary or sometimes even online. Soon it just got so hectic that i just threw the book out and bought a better more reliable source.
Example Output:
Negative