Instruct: Classify Amazon reviews into positive or negative sentiment
Query: good lord

This stuff literally made me grow hair on my tongue. It should be banned. No joke. I've always had a nice mouth and now... there's freakin black hair on my tongue. Some people say 'discoloration' - thats just the first signs of elongated taste buds - which is hairy tongue. I'm not going into the scientifics here. It has happened to many people I see around posting on other sights. Sign me up for a class action law suit.