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:
Sound quality and comfort are fantastic. However, they are not durable and have consistent issues with the wires fraying. When they honor the warranty this is great, but in my case as the Amazon seller is not on Etymotic's "authorized" list, my 2 year warranty is invalid.

Ex Output:
3

Ex Input:
I'll start with why I gave it one star; the case doesn't allow the sound to get through adequately. You can hear people on speakerphone or other but your voice is muffled even if you're talking with your mouth right up to the microphone opening. I would not recommend this product unless it was re-designed. It's made well maybe it would be waterproof I don't know. Everything fits together well it's just the sound is awful

Ex Output:
1

Ex Input:
Lens size is large, 4 x 2 Weight is 4 oz, 1 lighter than a smaller one I have the is probably glass.No little bump with higher magnification which I find annoying when trying to read. Good for Right or Left Handed use. Weight is 4 oz, 1 oz lighter than another I use with lens that is probably glass. Problem is that the surface is not precision shaped, so test appears wavey. Not a big problem , but gets distracting with expended use.

Ex Output:
3