input:  Now, answer this question: Title: Great for classroom use Review: After reading previous reviews, I would like to point out the fact that an excellent instructor makes this book and its grammar descriptions sufficient. After going through both books in two semesters I was ready to read Biblical texts (with the aid of a dictionary because the vocabulary is very different from Attic) and I could read unaltered excerpts from the classics. Its explanations are a bit sparse, but that's where a good instructor comes in. Even after being out of that class for 2 years, I can refer to the Reference Grammar section to refresh my knowledge and continue my studies in Greek. Is this product review negative?
A:
output: No

input:  Now, answer this question: Title: Excellent product Review: I jog on a regular basis and several years ago I started having knee pain due to an exercise badly executed. Some time ago I started training to run a marathon so I decided I needed a knee support. I got 3 or 4 products that didn't work for me until I bought this one. The difference was remarkable. I was able to run longer and longer and the support it giva me felt great. Finally, the big day came and I was able to run the 26.2 miles in about 4.5 hours. Not a great time but less than I thought it would take me and I'm convinced that I wouldn't even had made it to the finish line without the support of this product. Since then, every time I go running I have at least one of these on (for some reason, my left knee needs more support than my right knee). For me at least, this product really worked well and you may want to give it a try if you have knee problems and other products haven't work for you. Good luck! Is this product review negative?
A:
output: No

input:  Now, answer this question: Title: Awesome, Review: Awesome,love it. The only thing is that I keep mine turned inside out because I want the black on the outside so its less conspicuous. Great product though, couldnt buy one anywhere in the stores Is this product review negative?
A:
output: