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

Example Input: I bought this for my great nephew - 18 months old who is already learning to count and learn his colors. I also got him a dino puzzle by Melissa & Doug. Both items are really great. They are very durable and colorful so he likes playing with them and putting the shapes back in their places. The number puzzle is fun because when you take the number out, there are pictures under each number for example - take out the three - there are three turtles (I may have the wrong animal but you get the gist!!). His 3 year old cousin that visits often also loves playing with them so they have a good age range.
Example Output: Positive

Example Input: I received the message that the U. S. government is hiding knowledge about what is beyond Earth's atmosphere. But all governments hide information from the masses of their people. What intrigued me was when the Sentinel Prime character said to the Optimus Prime character that they used to be gods and now they were called machines. I can relate to that statement. I am a descendant of a people that were performing high sciences at one point in time and now we are beasts of burden. Try to talk to a typical African person about science and see what you get. At best they'll say, how does this help me pay my bills? At worse they'll look at you like you have 2 heads.
Example Output: Positive

Example Input: This item was a gift and I am basing my review on the three movies which I have seen.
Example Output:
Positive