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

I purchased this article in hopes of finding an intelligent discussion of the merits anddisadvantages, technically speaking, of grab sampling. To start with, I was never able to downloador print the article, just read it on line. But no loss, because the "article" is so nontechnicaland lame that it would not be worth the paper it was printed on anyway. Save your money.