Task: Sentiment Analysis
Input (English): Review: After reading this book, I felt guilty for having purchased it, because that contributed to its best-seller status. (Oops, maybe not; the way it works now, it was a bestseller the day it hit ths stores.) But it is sad to think of all the aspiring writers who struggle to get a publisher's attention for their worthy efforts, while this strangely hollow piece waltzed its way to bestseller status. Some editor should have thrown cold water on this potboiler. 
 Polarity: Negative
Output (English): True