Instruct: Classify the given review as either positive or negative.
Query: Gretsch review

Since my name is Dinah Gretsch and I have 13 grandchildren, how would I be able to buy my grandchildren this book, when Evil Gretsch is referred to? Wonder how that name came up, since it is one of the most popular Guitar lines in the world and Paul is also one of the most popular guitar players?