Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Defective by design

It's incredibly disappointing that a company as large as Amazon would have been so thoughtless as to summarily remove (with no notification!), materials from their users devices that the users had purchased and downloaded entirely legally and according to their user agreements [1].The fact that this is possible should be fair warning to anyone using these devices: The materials you purchase and download on to 'your' Kindle are not actually yours, and are not under your control whatsoever - Amazon owns that device and can (and clearly will) do as they see fit, regardless of any 'consumer rights' you may think you have.[...]