You will be given a definition of a task first, then some input of the task.
Given an Amazon review, indicate whether it is a 'Positive Review' or 'Negative Review'.

however the 4 Harry Potter vides I purchased in March have been deleted from my device by custmer service Folks, witha promose by one that I woould receive purcase credist on my act to repurchase same, but not here yet as this may have been overruled. I have just repurchased one of them nnd purchased another vidio, but I tthink we will have the same problemms occur again as I think my device is still mis registered if so its off to barnes & Noble
Output:
Positive Review