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

Example Input: The product seemed like a good idea but wish I had read all of the reviews before ordering. The product is not sturdy at all. It didn't come with the number of screws noted on the instructions so I had to go out and purchase more in order to finish putting it together. That was after I spent way to much time trying to decipher the instructions. Also, the clips that hold the bag to the frame are very tight and very difficult to put on and remove. I've torn every bag I've used. I hate wasting my money; but, I'll have to buy a better one.
Example Output: Negative

Example Input: My husband and I didn't have time to attend an 8 hour birthing class at the hospital, so we opted for this video. It was very informative and helped us understand what was happening when we went to the hospital. It was a little cheesy, but definitely worth getting.
Example Output: Positive

Example Input: I don't actually own this album, but I did buy Apple Venus, and I'll say this: I hope that this album has the charm that that album lacked. I've never been so disappointed with an XTC album. Why would one buy an album of the exact same songs, except in demo form? A shoddy attempt to extract money, it seems. Shame on you, XTC!
Example Output:
Negative