In this task, you're given a review from Amazon. Your task is to generate a rating for the product on a scale of 1-5 based on the review. The rating means 1: extremely poor, 2: poor, 3: neutral, 4: good, 5: extremely good.

Example Input: Love the shirt! My only complaint is that I wish the arms were a bit longer. I should mention that have very long arms and this is my usual complaint.
Example Output: 4

Example Input: This adapter is the best one I've come across for plugging in US devices to European two pronged ROUND plugs (be aware-Switzerland uses smaller two pronged adapters). It is really well constructed- not flimsy like many I've used before. The additional USB plugs made it perfect for charging phone and e-reader along with computer. Not the smallest, but it is worth having something that doesn't spark or break in half! Will buy again!
Example Output: 5

Example Input: Typical made in China, a bit sloppy on the covering but otherwise fine. Too small and lightly padded for big people, over 200 pounds. Fine for me and it works well. You need some basic skills to properly assemble it. The product came with 10 washers but the packing list says 8, which is correct. If you are tempted to put washers under the casters, don't, that will weaken them. One washer on each side of the 4 bolts is correct.
Example Output:
4