Instruct: Classify a review into positive or negative sentiment.
Query: Nice, but...

I got a couple of the Kumon books to keep my almost 3 years old boy busy during summer. He showed interest to do all of the activities in the 3 books we got and I really like the books, but I feel they are some how expensive as they are tiny books and can be done in a few days, so you need to go and order different ones. I will look for similar activity books some where else to be cheaper.