Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent For USMLE

I took my USMLE in 1997, I found this review extremel helpfull, I did not have any problemes answering questions in USMLE, which I owe to the great presentation of Info, easy to remember the well organized materials, tables, figures. Now I am a resident, I easily remember the pages, tabletes. I frequently used before journal clubs. I recomended for every USMLE taker. It worth it, it deserve SIX Stars if possible.