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.

Ex Input:
I bought this tracker for my son as a Christmas gift. He started wearing in on 25th and really loved it. On 30th, I realized that the face of the tracker had some scratches and he didn't know how it happened. I emailed the seller to inform the issue. In fact, before buying this tracker, I read reviews and found out 1 case, it was scratched and seller exchanged new piece for the customer. The exchange piece was working well since then. That was why I decided to take it and thought defect was just odd. Waiting for them to solve my problem...Will update when I got their final solution

Ex Output:
2

Ex Input:
It doesn't fit exactly how the picture shows. I guess it might look different on some faces, but when I wear mine the skull from the top jaw looks decent, but the teeth are stretched out across my face. That's all you see is the teeth stretched out. It just a bit off like your wearing white paint.

Ex Output:
2

Ex Input:
I love Wet brand brushes. They are gentle to the hair, wet or dry. They are sturdy but lightweight and feel good to my hand. And they come in many colors and designs. However this one in the pink flowers does not have an embossed "Wet" logo just beneath the brush area. All my others have it. In the pictures offered of this product, one shows it with an embossed "Wet" and another without. Also mine arrived with white nubs on the ends of the bristles, whereas one ad shows all black, while another shows white-tipped. My brush does say (in print, same as the pink flowers) "Wet brush" on its handle. I just want to make sure I purchased a legit "Wet" brand. Otherwise it seems like a good brush. I've had this particular one only a week, so I'm still trying it out. The way I clean and wash my Wet brushes is to pull out as much loose hair from them as I can with my hand. Then with a regular hair brush with soft bristles, I will brush it to remove the rest of the hairs, pulling them from the other brush. Or you could use a soft bristle scrub brush. Then I get both wet, put liquid soap on one and gently scrub the brushes together. That also brings up loose hair so you can grab and pull it out. Then I rinse both very well and dry upright on a wash rag. If you have thick curly hair or a lot of hair accumulated, you could try using the end of a rat tail comb down each row and pull up hairs before washing. Wet brushes seem to survive fairly hot tap water. Though I don't know I'd soak them in it. Likewise, I wouldn't put them in the dishwasher as some do. They might melt or the colors will fade away much faster than they normally would.

Ex Output:
4