Instruct: Classify Amazon reviews into positive or negative sentiment
Query: NAIL TEK

I PURCHASED THIS PRODUCT BECAUSE I HAD FAKE NAIL ON ME FOR SEVERAL SEVERAL YRS, THEN WHEN I DECIDED TO TAKE OFF THE NAILS, MY NAILS WERE SO SOFT AND A GIRL I WORKED WITH HAD SOME OF THIS NAIL POLISH AND PAID 15.00 AT A NAIL SALON SO I LOOKED AT AMAZON AND FOUND IT FOR A LOT CHEAPER. I HAVE HAD THIS PRODUCT MAYBE 2 AND HALF WKS AND MY NAILS ARE SO HARD THIS PRODUCT REALLY DOES WORK.