Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A waste of money

The Golosa book series is worthless to anyone who wants to self-study because it gives no answers to the exercises. It is poorly organised and layed out complete with stupid drawings and useless exercises that can only be performed in a classroom setting. That is, if one can understand the poorly worded questions presented. And for $180 flamin' bucks for the two books I'd say that it is a complete rip-off especially when students are the least likely to be able to afford to throw their money away on this type of scholastic inflation. Their web-site is helpful however and I use it regularly. Get the New Penguin Russian Course it is way cheaper and way better. If your school requires this book Golosa as many do then I pity you.