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

Ex Input:
Who would buy it not knowing what is on it, is there any new material, is there a better version of music than previously released, how many, etc., etc. You've got to tell us something - give us a reason to buy it - give us a few short pieces to listen too! King indeed; he's pretty good but the King has been dead awhile (notwithstanding the occasional phantom sighting) and the remaining living creators of original rock and roll - Jerry Lee Lewis and Chuck Berry are very much alive and touring and in Jerry Lee's case still recording great music.I'll take a look at buying this if I can see and hear what it is!Jimp.s. sorry for the 1 star but ...

Ex Output:
Negative

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 bought this bag holder to use in my yard to collect leaves anddog droppings. The construction is very flimsy and the little tabs that hold the bag in place are VERY VERY hard to get off!. After several months, it now can barely stand up by itself and I have to constantly tighten the wheels and other screws. It would be nice if it was better made and sturdier and if it had a cover to keep out the flies...It seemed like a great idea, but the products is not well made.

Ex Output:
Negative