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'.

I bought this because I thought I needed a specific power adapter for the kindle. I didn't need it at all. The USB connector to the kindle would have sufficed - I only needed an adapter that accepts USB plugs as well (which I have plenty of at home for different countries!). I am disappointed that I didn't realise it before and paid $20 for the adapter! I am living in Europe so to send it back makes no sense - if you have power adapters that has its own USB port, then you do not need this expensive adapter!
Output:
Negative Review