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

Example Input: Just "assembled" the bat cave for my 5 year old. Pathetic construction and workmanship -- half of the gimmics don't work. Another pile of injection-molded plastic parts and stickers that I get to assemble -- what is this thing -- $4 of raw materials + $2 of shipping + $10 of marketing? Garbage. Shame on you Mattel, the only thing worse is the batman figures with the batarangs that take 30 minutes and a blowtorch to get out of the packaging. This batcave will collapse and die within hours of play, I'm sure of it. GARBAGE!
Example Output: Negative

Example Input: I received the product in a timely manner. It was as advertised. I have used it a number of times and it works well although I haven't gotten the results from it I had hoped for. No fault of the seller or the product though.
Example Output: Positive

Example Input: I ordered Flyboys because I had seen stills of the replica Neuports and they looked fantastic! As a lover of The Blue Max I hoped that Flyboys would exceed it largley because of advances in film effects. Was I wrong or what! A dismal screenplay peppered with gung ho naf lines paying scant attention to history. The best (worst) part of the film was the romance and our hero stealing a plane to rescue the heroine and her two young charges, for which the hero recieves a medal!! Yea right! But the one scene worth of "the skunk of the year award" was the hero landing his plane in a shell pocked no mans land to rescue his comrade traped under his aircraft, how did he do that? Will we ever find out?Well for me The Blue Max towers above this movie despite being over 40 years its senior. Flyboys is a dog worse than Pearl Harbour yes we have the technology but that cannot make up for a very poor and purile script and wooden acting.
Example Output:
Negative