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: These were easy to install and seem to be of decent quality. The finish looks good with all my different door styles and colors. I really wanted all my doors to be keyed alike, and this set provided that option. In fact, each set came with four keys, so I have plenty of spares.
Example Output: 4

Example Input: Most of the buttons worked when these were new, but never the one that pairs to your device. I was able to get them to pair by starting my music, and using the settings on my phone. Since I bought them last minute before a trip I just went with it. Now, a year later, none of the buttons work. The sound quality and noise cancelling were very nice, but now the volume is stuck at a level only audible in a quiet room... Not really where you need noise cancelling.
Example Output: 2

Example Input: Update: after posting my review they emailed me and are sending a new case free if charge. Great customer service and hoping the leak was just fluke! 😁😁😁 Loved the case had it about a week and a half and it's got a leak... never dropped or anything just woke up to a puddle under my phone 😣😣
Example Output:
4