Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Ex Input:
I was enchanted with this fascinating book on barn conversions. Barns are great relics from our past, conveying a sense of history, but many have been ruined by weather, time, and neglect. I didn't realize how many creative architects and owners have made barns useful for both residential and commercial use through renovation and restoration. The intrinsic character of these old barns brings an integrity and charm rarely seen in new construction. In many gorgeous illustrations, Rooney describes the history of barns, their adornment (who knew that it was all because of a 9th century pope that there are so many roosters on weathervanes?), and their use as gorgeous residences and fascinating commercial and establishments - including an architectural office, inns, and even a funeral chapel. One entrepreneur even used several to develop an office complex. If you love barns and if you like to see the past preserved in the present, you will love this book.

Ex Output:
Positive

Ex Input:
Altough the content on childbirth is descriptive (at times a bit too descriptive), the commentator/director Sheri Bayles is one of the most annoying, irritating, wanna-be-actresses that my husband and I have ever seen. Her approach to teaching by injecting humor is painful, and it took all of our strength to not plug our ears and cover our eyes to watch this woman. If you can handle obnoxious, loud and nerdy instructors, then you may enjoy this DVD. The 5 couples she works with in the instruction look bored and confused.

Ex Output:
Negative

Ex Input:
I found research that said this possibly may help get your cycles back and so after finishing the bottle the cycle never came. I guess if you keep it up after a few months is what might help, but I decided instead of buying more and hoping it would help to talk to my doctor first.

Ex Output:
Negative