Instruct: Classify Amazon reviews into positive or negative sentiment
Query: horrible interface

Installation is near impossible, with no support. I simply can't understand why Convekta cannot have installations as simple and straitforward as Chessbase products (or, for that matter, any other computer software geared to consumers). This may work for you if you (1)speak Russian, (2) are a computer professional, or (3) both (ideally).