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.

A couple of them (Patina and Ruby) seem to be defective. They are runny and not color saturated / thick like the others in the set. The rest of them are utterly fantastic, used them on etched glass.
3