Instruct: Classify a given review into positive or negative sentiment.
Query: Not what I expected

I guess I didn't realize how much the "railroad" would come into play for such a long time at the start of the book. Took me FOREVER to get thru it and I almost gave up reading the remainder. However , now that I'm at the part of his life as a POW, it's more interesting. I actually had purchased the book for my elderly father (79) but realize now that it's not something he would have the patience to read. Kinda disappointing.