input:  Now, answer this question: Title: Lacks Exact Description Review: It's good. But on the market it lacks exact explanation. I expected it to be made in Germany, however it was produced by RCA. Is this product review negative?
A:
output: No

input:  Now, answer this question: Title: Useful? Review: I bought this to use as a quick reference guide on a recent trip to Mexico. While it did have some useful words, others were just not there. It was an inexpensive little book, but in the end I wished I would have just bought an English-Spanish dictionary, or an electronic translator. Also, the words are alphabetized in Spanish, so unless you know what Spanish word you are looking for, this isn't going to help too much. Is this product review negative?
A:
output: Yes

input:  Now, answer this question: Title: Unhappy Review: Looks like a well made valve but it's not. In the off position the valve allows fuel to continue to drip. Additionally, fuel leaks through the seal at the shaft of the knob. Is this product review negative?
A:
output: