You will be given a definition of a task first, then some input of the task.
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

I ordered three rods (all black) of various sizes and received free shipping. When the order was received, one of the rods was in pewter. They agreed to send a return shipping label for the incorrect item, but I would have to pay shipping on one rod.
Output:
Negative