Instruct: Classify Amazon reviews into positive or negative sentiment
Query: By combining, you're losing...

While it appears to be a good tool--having a 2-in-1 approach, this book falls short by the very thing it promotes: two books in one.Any time you compromise a work and combine two into one, you won't get the best of both worlds; you get a diminished product that really doesn't meet your needs that much if at all.You are much better off buying a separate dictionary and concordance.