Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't waste your money

Terrible! Not a single picture that demonstrates how these exercises should be done. I bought this book for my 80 yr.+ parents, but it's useless. They are not going to be able to read the descriptions and figure out what to do without pictures. This will be going up for sale on Amazon later today. I hope some sucker doesn't read my review before I sell this loser.