Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Chicken, please

My 60-lb golden/lab mix loves these bones -- but only the chicken flavor. She wouldn't touch the liver or "original." She's the first dog I've ever had that likes these really hard bones. She's done a good job of chewing down both ends over a period of a year or so, and I've already got a replacement for when the little knobs are completely gone. For now, they are nice and rough and probably scour a lot of tartar off when she gnaws on them.