Instruct: Classify Amazon reviews into positive or negative sentiment
Query: ok for overview but some test questions not properly edited

I would have gave this 2.5 stars but there is no option to rate in half star increments. Some of the answers to test questions are not correct, or do not fully illustrate the solution (working the problem out step by step to help people learn the process or identify where they went wrong). Since people are using the software to learn it is CRITICAL that problems have correct answers and fully illustrated solutions. Also, you must have the cd inserted to run the program, but if you do not have it inserted there is no prompt to insert it, the program just refuses to run, and there is no error message either. This is problematic because there is alot of software nowadays that DOES NOT require the cd to be inserted, microsoft office being a prime example, so developers and publishers should not automatically assume that people will just know to have the cd in the drive.