Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Using the Kindle

I love being able to carry a library around with me on my travels. I'm still finding all of its capabilities. I do have two concerns. It is awkward to be able to read notes in non-fiction works and the index is not usable because there is no location for the items in the index. I have also noted some omissions of numbers and graphs are impossible to read. I presume these things are correctable.