Instruct: Classify an Amazon review into positive or negative sentiment.
Query: nik's favorite!

we purchased this toy at a dog show years ago, paid alot of $ for it but it lasted years. then nik did put a hole in it. you can imagine our delight when we found this latex toy online. nik was given this at christmas and again it is the most favorite toy in the house. the hippo rocks nik,s world!