input:  Now, answer this question: Is this product review positive? Title: Maybe I got a defective product Review: I bought a 3 pack from esportsonline through Amazon. I opened them and almost instantaneously they started to warm. In 3 minutes, they were hot in my shoes, almost uncomfortably hot but that's because I had thin socks on. After 1 hour, they turned cold and stiff. Maybe mine were defective. I'll give them another try and update this review then. Update: 2nd pair didn't last more than an hour. Weird. I never had this problem with the Grabber toe warmer. Answer:
A:
output: No

input:  Now, answer this question: Is this product review positive? Title: Breaks easily Review: I have to repurchase these annually since the connection stub where the tubing attaches to the stake breaks every year. There aren't a lot of other alternatives so I put up with the hassle of reordering them every year. If there were better alternatives, I would certainly switch products. Answer:
A:
output: No

input:  Now, answer this question: Is this product review positive? Title: Staedtler quality & reputation QUESTIONED! Review: The nibs are of very poor quality. Only one nib is satisfactory. I struggle to get the ink to come through the scratchy nibs. I give this kit two stars only because of its variety of ink-color selections. Staedtler has a good reputation, and am surprised that this kit is unsatisfactory. Maybe I received a "lemon." Answer:
A:
output: