Problem: 
Q: Title: Don't wast your money Review: These work okay if you're very, very careful. But I found that for practical daily use, they are pretty useless. Air still enters the bags. I don't use them anymore. Is this product review negative?
Answer: Yes
Problem: 
Q: Title: Erwin Hauer: Continua--Architectural Screens and Walls Review: Excellent b+w illustrations and clear layout. Very informative and inspiring works. Is this product review negative?
Answer: No
Problem: 
Q: Title: Mike and Joan were a little lackluster Review: While I really enjoy the character of Mike, and I loved Joan, I didn't feel as if the reader got the most of their story. Joan, especially, was a bit hard to warm to.Having said that, I liked seeing Mary Lou's story advance. I liked that the reader got to know her, and it made the Sam and Mary Lou dynamic make sense.Joan's grandparents' story was beautiful and I loved the terrorism subplot, I was just less than thrilled by Joan and Mike's relationship. Is this product review negative?
Answer: